text: /*
   TraceKit - Cross brower stack traces - github.com/occ/TraceKit
   MIT license
  */
  
  (function(window, undefined) {
  
  
  var TraceKit = {};
  var _oldTraceKit = window.TraceKit;
  
  // global reference to slice
  var _slice = [].slice;
  var UNKNOWN_FUNCTION = '?';
  var Raygun;
  
  
  /**
   * _has, a better form of hasOwnProperty
   * Example: _has(MainHostObject, property) === true/false
   *
   * @param {Object} host object to check property
   * @param {string} key to check
   */
  function _has(object, key) {
      return Object.prototype.hasOwnProperty.call(object, key);
  }
  
  function _isUndefined(what) {
      return typeof what === 'undefined';
  }
  
  /**
   * TraceKit gets loaded before Raygun
   * Raygun uses this callback to give TraceKit an instance of Raygun
   * This is required to use the Utilities module
   */
  TraceKit.setRaygun = function setRaygun(rg) {
      if (!Raygun) {
          Raygun = rg;
      }
  };
  
  /**
   * TraceKit.noConflict: Export TraceKit out to another variable
   * Example: var TK = TraceKit.noConflict()
   */
  TraceKit.noConflict = function noConflict() {
      window.TraceKit = _oldTraceKit;
      return TraceKit;
  };
  
  /**
   * TraceKit.wrap: Wrap any function in a TraceKit reporter
   * Example: func = TraceKit.wrap(func);
   *
   * @param {Function} func Function to be wrapped
   * @return {Function} The wrapped func
   */
  TraceKit.wrap = function traceKitWrapper(func) {
      function wrapped() {
          try {
              return func.apply(this, arguments);
          } catch (e) {
              TraceKit.report(e);
              throw e;
          }
      }
      return wrapped;
  };
  
  /**
   * TraceKit.report: cross-browser processing of unhandled exceptions
   *
   * Syntax:
   *   TraceKit.report.subscribe(function(stackInfo) { ... })
   *   TraceKit.report.unsubscribe(function(stackInfo) { ... })
   *   TraceKit.report(exception)
   *   try { ...code... } catch(ex) { TraceKit.report(ex); }
   *
   * Supports:
   *   - Firefox: full stack trace with line numbers, plus column number
   *              on top frame; column number is not guaranteed
   *   - Opera:   full stack trace with line and column numbers
   *   - Chrome:  full stack trace with line and column numbers
   *   - Safari:  line and column number for the top frame only; some frames
   *              may be missing, and column number is not guaranteed
   *   - IE:      line and column number for the top frame only; some frames
   *              may be missing, and column number is not guaranteed
   *
   * In theory, TraceKit should work on all of the following versions:
   *   - IE5.5+ (only 8.0 tested)
   *   - Firefox 0.9+ (only 3.5+ tested)
   *   - Opera 7+ (only 10.50 tested; versions 9 and earlier may require
   *     Exceptions Have Stacktrace to be enabled in opera:config)
   *   - Safari 3+ (only 4+ tested)
   *   - Chrome 1+ (only 5+ tested)
   *   - Konqueror 3.5+ (untested)
   *
   * Requires TraceKit.computeStackTrace.
   *
   * Tries to catch all unhandled exceptions and report them to the
   * subscribed handlers. Please note that TraceKit.report will rethrow the
   * exception. This is REQUIRED in order to get a useful stack trace in IE.
   * If the exception does not reach the top of the browser, you will only
   * get a stack trace from the point where TraceKit.report was called.
   *
   * Handlers receive a stackInfo object as described in the
   * TraceKit.computeStackTrace docs.
   */
  TraceKit.report = (function reportModuleWrapper() {
      var handlers = [],
          lastException = null,
          lastExceptionStack = null;
  
      /**
       * Add a crash handler.
       * @param {Function} handler
       */
      function subscribe(handler) {
          installGlobalHandler();
          handlers.push(handler);
      }
  
      /**
       * Remove a crash handler.
       * @param {Function} handler
       */
      function unsubscribe(handler) {
          for (var i = handlers.length - 1; i >= 0; --i) {
              if (handlers[i] === handler) {
                  handlers.splice(i, 1);
              }
          }
      }
  
      /**
       * Dispatch stack information to all handlers.
       * @param {Object.<string, *>} stack
       */
      function notifyHandlers(stack, windowError) {
          var exception = null;
          if (windowError && !TraceKit.collectWindowErrors) {
            return;
          }
          for (var i in handlers) {
              if (_has(handlers, i)) {
                  try {
                      handlers[i].apply(null, [stack].concat(_slice.call(arguments, 2)));
                  } catch (inner) {
                      exception = inner;
                  }
              }
          }
  
          if (exception) {
              throw exception;
          }
      }
  
      var _oldOnerrorHandler, _onErrorHandlerInstalled;
  
      /**
       * Ensures all global unhandled exceptions are recorded.
       * Supported by Gecko and IE.
       * @param {string} message Error message.
       * @param {string} url URL of script that generated the exception.
       * @param {(number|string)} lineNo The line number at which the error
       * occurred.
       */
      function traceKitWindowOnError(message, url, lineNo, columnNo, errorObj) {
          var stack = null;
  
          if (errorObj) {
            stack = TraceKit.computeStackTrace(errorObj);
          }
          else
          {
              if (lastExceptionStack) {
                  TraceKit.computeStackTrace.augmentStackTraceWithInitialElement(lastExceptionStack, url, lineNo, message);
                  stack = lastExceptionStack;
                  lastExceptionStack = null;
                  lastException = null;
              } else {
                  var location = {
                      'url': url,
                      'line': lineNo,
                      'column': columnNo
                  };
                  location.func = TraceKit.computeStackTrace.guessFunctionName(location.url, location.line);
                  location.context = TraceKit.computeStackTrace.gatherContext(location.url, location.line);
                  stack = {
                      'mode': 'onerror',
                      'message': message,
                      'url': document.location.href,
                      'stack': [location],
                      'useragent': navigator.userAgent
                  };
              }
          }
  
          notifyHandlers(stack, 'from window.onerror');
  
          if (_oldOnerrorHandler) {
              return _oldOnerrorHandler.apply(this, arguments);
          }
  
          return false;
      }
  
      function installGlobalHandler ()
      {
          if (_onErrorHandlerInstalled === true) {
             return;
          }
          _oldOnerrorHandler = window.onerror;
          window.onerror = traceKitWindowOnError;
          _onErrorHandlerInstalled = true;
      }
  
      /**
       * Reports an unhandled Error to TraceKit.
       * @param {Error} ex
       */
      function report(ex) {
          var args;
          if (typeof document !== 'undefined') {
              args = _slice.call(arguments, 1);
          }
  
          if (lastExceptionStack) {
              if (lastException === ex) {
                  return; // already caught by an inner catch block, ignore
              } else {
                  var s = lastExceptionStack;
                  lastExceptionStack = null;
                  lastException = null;
                  notifyHandlers.apply(null, [s, null].concat(args));
              }
          }
  
          var stack = TraceKit.computeStackTrace(ex);
          lastExceptionStack = stack;
          lastException = ex;
  
          // If the stack trace is incomplete, wait for 2 seconds for
          // slow slow IE to see if onerror occurs or not before reporting
          // this exception; otherwise, we will end up with an incomplete
          // stack trace
          window.setTimeout(function () {
              if (lastException === ex) {
                  lastExceptionStack = null;
                  lastException = null;
                  notifyHandlers.apply(null, [stack, null].concat(args));
              }
          }, (stack.incomplete ? 2000 : 0));
  
          if (!Raygun.Utilities.isReactNative()) {
              throw ex; // re-throw to propagate to the top level (and cause window.onerror)
          }
          // Else case for this is handled in attach
      }
  
      report.subscribe = subscribe;
      report.unsubscribe = unsubscribe;
      return report;
  }());
  
  /**
   * TraceKit.computeStackTrace: cross-browser stack traces in JavaScript
   *
   * Syntax:
   *   s = TraceKit.computeStackTrace.ofCaller([depth])
   *   s = TraceKit.computeStackTrace(exception) // consider using TraceKit.report instead (see below)
   * Returns:
   *   s.name              - exception name
   *   s.message           - exception message
   *   s.stack[i].url      - JavaScript or HTML file URL
   *   s.stack[i].func     - function name, or empty for anonymous functions (if guessing did not work)
   *   s.stack[i].args     - arguments passed to the function, if known
   *   s.stack[i].line     - line number, if known
   *   s.stack[i].column   - column number, if known
   *   s.stack[i].context  - an array of source code lines; the middle element corresponds to the correct line#
   *   s.mode              - 'stack', 'stacktrace', 'multiline', 'callers', 'onerror', or 'failed' -- method used to collect the stack trace
   *
   * Supports:
   *   - Firefox:  full stack trace with line numbers and unreliable column
   *               number on top frame
   *   - Opera 10: full stack trace with line and column numbers
   *   - Opera 9-: full stack trace with line numbers
   *   - Chrome:   full stack trace with line and column numbers
   *   - Safari:   line and column number for the topmost stacktrace element
   *               only
   *   - IE:       no line numbers whatsoever
   *
   * Tries to guess names of anonymous functions by looking for assignments
   * in the source code. In IE and Safari, we have to guess source file names
   * by searching for function bodies inside all page scripts. This will not
   * work for scripts that are loaded cross-domain.
   * Here be dragons: some function names may be guessed incorrectly, and
   * duplicate functions may be mismatched.
   *
   * TraceKit.computeStackTrace should only be used for tracing purposes.
   * Logging of unhandled exceptions should be done with TraceKit.report,
   * which builds on top of TraceKit.computeStackTrace and provides better
   * IE support by utilizing the window.onerror event to retrieve information
   * about the top of the stack.
   *
   * Note: In IE and Safari, no stack trace is recorded on the Error object,
   * so computeStackTrace instead walks its *own* chain of callers.
   * This means that:
   *  * in Safari, some methods may be missing from the stack trace;
   *  * in IE, the topmost function in the stack trace will always be the
   *    caller of computeStackTrace.
   *
   * This is okay for tracing (because you are likely to be calling
   * computeStackTrace from the function you want to be the topmost element
   * of the stack trace anyway), but not okay for logging unhandled
   * exceptions (because your catch block will likely be far away from the
   * inner function that actually caused the exception).
   *
   * Tracing example:
   *     function trace(message) {
   *         var stackInfo = TraceKit.computeStackTrace.ofCaller();
   *         var data = message + "\n";
   *         for(var i in stackInfo.stack) {
   *             var item = stackInfo.stack[i];
   *             data += (item.func || '[anonymous]') + "() in " + item.url + ":" + (item.line || '0') + "\n";
   *         }
   *         if (window.console)
   *             console.info(data);
   *         else
   *             alert(data);
   *     }
   */
  TraceKit.computeStackTrace = (function computeStackTraceWrapper() {
      var debug = false,
          sourceCache = {};
  
      /**
       * Attempts to retrieve source code via XMLHttpRequest, which is used
       * to look up anonymous function names.
       * @param {string} url URL of source code.
       * @return {string} Source contents.
       */
      function loadSource(url) {
          if (typeof url !== 'string') {
            return [];
          }
  
          return ''; // Remote fetching disabled due to deprecated synchronous XHR support in browsers
      }
  
      /**
       * Retrieves source code from the source code cache.
       * @param {string} url URL of source code.
       * @return {Array.<string>} Source contents.
       */
      function getSource(url) {
          if (!_has(sourceCache, url)) {
              // URL needs to be able to fetched within the acceptable domain.  Otherwise,
              // cross-domain errors will be triggered.
              var source = '';
  
              url = url || "";
  
              var domain;
              if (typeof document !== 'undefined') {
                  domain = document.domain;
              } else {
                  domain = window.location.hostname;
              }
  
              if (url.indexOf && url.indexOf(domain) !== -1) {
                  source = loadSource(url);
              }
  
              sourceCache[url] = source ? source.split('\n') : [];
          }
  
          return sourceCache[url];
      }
  
      /**
       * Tries to use an externally loaded copy of source code to determine
       * the name of a function by looking at the name of the variable it was
       * assigned to, if any.
       * @param {string} url URL of source code.
       * @param {(string|number)} lineNo Line number in source code.
       * @return {string} The function name, if discoverable.
       */
      function guessFunctionName(url, lineNo) {
          var reFunctionArgNames = /function ([^(]*)\(([^)]*)\)/,
              reGuessFunction = /['"]?([0-9A-Za-z$_]+)['"]?\s*[:=]\s*(function|eval|new Function)/,
              line = '',
              maxLines = 10,
              source = getSource(url),
              m;
  
          if (!source.length) {
              return UNKNOWN_FUNCTION;
          }
  
          // Walk backwards from the first line in the function until we find the line which
          // matches the pattern above, which is the function definition
          for (var i = 0; i < maxLines; ++i) {
              line = source[lineNo - i] + line;
  
              if (!_isUndefined(line)) {
                  if ((m = reGuessFunction.exec(line))) {
                      return m[1];
                  } else if ((m = reFunctionArgNames.exec(line))) {
                      return m[1];
                  }
              }
          }
  
          return UNKNOWN_FUNCTION;
      }
  
      /**
       * Retrieves the surrounding lines from where an exception occurred.
       * @param {string} url URL of source code.
       * @param {(string|number)} line Line number in source code to centre
       * around for context.
       * @return {?Array.<string>} Lines of source code.
       */
      function gatherContext(url, line) {
          var source = getSource(url);
  
          if (!source.length) {
              return null;
          }
  
          var context = [],
              // linesBefore & linesAfter are inclusive with the offending line.
              // if linesOfContext is even, there will be one extra line
              //   *before* the offending line.
              linesBefore = Math.floor(TraceKit.linesOfContext / 2),
              // Add one extra line if linesOfContext is odd
              linesAfter = linesBefore + (TraceKit.linesOfContext % 2),
              start = Math.max(0, line - linesBefore - 1),
              end = Math.min(source.length, line + linesAfter - 1);
  
          line -= 1; // convert to 0-based index
  
          for (var i = start; i < end; ++i) {
              if (!_isUndefined(source[i])) {
                  context.push(source[i]);
              }
          }
  
          return context.length > 0 ? context : null;
      }
  
      /**
       * Escapes special characters, except for whitespace, in a string to be
       * used inside a regular expression as a string literal.
       * @param {string} text The string.
       * @return {string} The escaped string literal.
       */
      function escapeRegExp(text) {
          return text.replace(/[\-\[\]{}()*+?.,\\\^$|#]/g, '\\$&');
      }
  
      /**
       * Escapes special characters in a string to be used inside a regular
       * expression as a string literal. Also ensures that HTML entities will
       * be matched the same as their literal friends.
       * @param {string} body The string.
       * @return {string} The escaped string.
       */
      function escapeCodeAsRegExpForMatchingInsideHTML(body) {
          return escapeRegExp(body).replace('<', '(?:<|&lt;)').replace('>', '(?:>|&gt;)').replace('&', '(?:&|&amp;)').replace('"', '(?:"|&quot;)').replace(/\s+/g, '\\s+');
      }
  
      /**
       * Determines where a code fragment occurs in the source code.
       * @param {RegExp} re The function definition.
       * @param {Array.<string>} urls A list of URLs to search.
       * @return {?Object.<string, (string|number)>} An object containing
       * the url, line, and column number of the defined function.
       */
      function findSourceInUrls(re, urls) {
          var source, m;
          for (var i = 0, j = urls.length; i < j; ++i) {
              // console.log('searching', urls[i]);
              if ((source = getSource(urls[i])).length) {
                  source = source.join('\n');
                  if ((m = re.exec(source))) {
                      // console.log('Found function in ' + urls[i]);
  
                      return {
                          'url': urls[i],
                          'line': source.substring(0, m.index).split('\n').length,
                          'column': m.index - source.lastIndexOf('\n', m.index) - 1
                      };
                  }
              }
          }
  
          // console.log('no match');
  
          return null;
      }
  
      /**
       * Determines at which column a code fragment occurs on a line of the
       * source code.
       * @param {string} fragment The code fragment.
       * @param {string} url The URL to search.
       * @param {(string|number)} line The line number to examine.
       * @return {?number} The column number.
       */
      function findSourceInLine(fragment, url, line) {
          var source = getSource(url),
              re = new RegExp('\\b' + escapeRegExp(fragment) + '\\b'),
              m;
  
          line -= 1;
  
          if (source && source.length > line && (m = re.exec(source[line]))) {
              return m.index;
          }
  
          return null;
      }
  
      /**
       * Determines where a function was defined within the source code.
       * @param {(Function|string)} func A function reference or serialized
       * function definition.
       * @return {?Object.<string, (string|number)>} An object containing
       * the url, line, and column number of the defined function.
       */
      function findSourceByFunctionBody(func) {
          var urls = [window.location.href],
              scripts = document.getElementsByTagName('script'),
              body,
              code = '' + func,
              codeRE = /^function(?:\s+([\w$]+))?\s*\(([\w\s,]*)\)\s*\{\s*(\S[\s\S]*\S)\s*\}\s*$/,
              eventRE = /^function on([\w$]+)\s*\(event\)\s*\{\s*(\S[\s\S]*\S)\s*\}\s*$/,
              re,
              parts,
              result;
  
          for (var i = 0; i < scripts.length; ++i) {
              var script = scripts[i];
              if (script.src) {
                  urls.push(script.src);
              }
          }
  
          if (!(parts = codeRE.exec(code))) {
              re = new RegExp(escapeRegExp(code).replace(/\s+/g, '\\s+'));
          }
  
          // not sure if this is really necessary, but I don’t have a test
          // corpus large enough to confirm that and it was in the original.
          else {
              var name = parts[1] ? '\\s+' + parts[1] : '',
                  args = parts[2].split(',').join('\\s*,\\s*');
  
              body = escapeRegExp(parts[3]).replace(/;$/, ';?'); // semicolon is inserted if the function ends with a comment.replace(/\s+/g, '\\s+');
              re = new RegExp('function' + name + '\\s*\\(\\s*' + args + '\\s*\\)\\s*{\\s*' + body + '\\s*}');
          }
  
          // look for a normal function definition
          if ((result = findSourceInUrls(re, urls))) {
              return result;
          }
  
          // look for an old-school event handler function
          if ((parts = eventRE.exec(code))) {
              var event = parts[1];
              body = escapeCodeAsRegExpForMatchingInsideHTML(parts[2]);
  
              // look for a function defined in HTML as an onXXX handler
              re = new RegExp('on' + event + '=[\\\'"]\\s*' + body + '\\s*[\\\'"]', 'i');
  
              if ((result = findSourceInUrls(re, urls[0]))) {
                  return result;
              }
  
              // look for ???
              re = new RegExp(body);
  
              if ((result = findSourceInUrls(re, urls))) {
                  return result;
              }
          }
  
          return null;
      }
  
      // Contents of Exception in various browsers.
      //
      // SAFARI:
      // ex.message = Can't find variable: qq
      // ex.line = 59
      // ex.sourceId = 580238192
      // ex.sourceURL = http://...
      // ex.expressionBeginOffset = 96
      // ex.expressionCaretOffset = 98
      // ex.expressionEndOffset = 98
      // ex.name = ReferenceError
      //
      // FIREFOX:
      // ex.message = qq is not defined
      // ex.fileName = http://...
      // ex.lineNumber = 59
      // ex.stack = ...stack trace... (see the example below)
      // ex.name = ReferenceError
      //
      // CHROME:
      // ex.message = qq is not defined
      // ex.name = ReferenceError
      // ex.type = not_defined
      // ex.arguments = ['aa']
      // ex.stack = ...stack trace...
      //
      // INTERNET EXPLORER:
      // ex.message = ...
      // ex.name = ReferenceError
      //
      // OPERA:
      // ex.message = ...message... (see the example below)
      // ex.name = ReferenceError
      // ex.opera#sourceloc = 11  (pretty much useless, duplicates the info in ex.message)
      // ex.stacktrace = n/a; see 'opera:config#UserPrefs|Exceptions Have Stacktrace'
  
      /**
       * Computes stack trace information from the stack property.
       * Chrome and Gecko use this property.
       * Added WinJS regex for Raygun4JS's offline caching support
       * Added stack string sanitization for React Native in release mode, for JavaScriptCore, which uses the Gecko regex
       * @param {Error} ex
       * @return {?Object.<string, *>} Stack trace information.
       */
      function computeStackTraceFromStackProp(ex) {
          var parseError;
  
          if (!ex.stack) {
              return null;
          }
  
          var chrome = /^\s*at (.*?) ?\(((?:file|https?|\s*|blob|chrome-extension|native|webpack|ionic|eval|<anonymous>|\/).*?)(?::(\d+))?(?::(\d+))?\)?\s*$/i,
              gecko = /^\s*(.*?)(?:\((.*?)\))?(?:^|@)((?:file|https?|blob|chrome|webpack|ionic|\[native).*?|[^@]*bundle)(?::(\d+))?(?::(\d+))?\s*$/i,
              winjs = /^\s*at (?:((?:\[object object\])?.+) )?\(?((?:ms-appx|https?|webpack|blob):.*?):(\d+)(?::(\d+))?\)?\s*$/i,
              lines = ex.stack.split('\n'),
              stack = [],
              parts,
              element,
              reference = /^(.*) is undefined$/.exec(ex.message);
  
          if (Raygun.Utilities.isReactNative()) {
              var reactNativeDevicePathStripRegex = /^(.*@)?.*\/[^\.]+(\.app|CodePush)\/?(.*)/;
              var sourcemapPrefix = 'file://reactnative.local/';
  
              for (var i = 0; i < lines.length; i++) {
                  parts = reactNativeDevicePathStripRegex.exec(lines[i]);
  
                  if (parts !== null) {
                      var functionName = parts[1] ? parts[1] : 'anonymous@';
                      var filenameLineNumAndColumnNum = parts[3];
                      lines[i] = functionName + sourcemapPrefix + filenameLineNumAndColumnNum;
                  }
              }
          }
  
          for (var i = 0, j = lines.length; i < j; ++i) {
              if ((parts = gecko.exec(lines[i]))) {
                  element = {
                      'url': parts[3],
                      'func': parts[1] || UNKNOWN_FUNCTION,
                      'args': parts[2] ? parts[2].split(',') : '',
                      'line': +parts[4],
                      'column': parts[5] ? +parts[5] : null
                  };
              } else if ((parts = chrome.exec(lines[i]))) {
                  element = {
                      'url': parts[2],
                      'func': parts[1] || UNKNOWN_FUNCTION,
                      'line': +parts[3],
                      'column': parts[4] ? +parts[4] : null
                  };
              } else if ((parts = winjs.exec(lines[i]))) {
                  element = {
                      'url': parts[2],
                      'func': parts[1] || UNKNOWN_FUNCTION,
                      'line': +parts[3],
                      'column': parts[4] ? +parts[4] : null
                  };
              } else {
                  continue;
              }
  
              if (!element.func && element.line) {
                  element.func = guessFunctionName(element.url, element.line);
              }
  
              if (typeof document !== 'undefined' && element.line) {
                  element.context = gatherContext(element.url, element.line);
              }
  
              stack.push(element);
          }
  
          if (stack[0] && stack[0].line && !stack[0].column && reference) {
              stack[0].column = findSourceInLine(reference[1], stack[0].url, stack[0].line);
          } else if (!stack[0].column && typeof ex.columnNumber !== 'undefined') {
              // Firefox column number
              stack[0].column = ex.columnNumber + 1;
          }
  
          if (!stack.length) {
              return null;
          }
  
          var res = {
              'mode': 'stack',
              'name': ex ? ex.name : '',
              'message': ex ? ex.message : '',
              'url': typeof document !== 'undefined' ? document.location.href : '',
              'stack': stack,
              'useragent': navigator ? navigator.userAgent : '',
              'stackstring': ex && ex.stack ? ex.stack.toString() : ''
          };
  
          return res;
      }
  
      /**
       * Computes stack trace information from the stacktrace property.
       * Opera 10 uses this property.
       * @param {Error} ex
       * @return {?Object.<string, *>} Stack trace information.
       */
      function computeStackTraceFromStacktraceProp(ex) {
          // Access and store the stacktrace property before doing ANYTHING
          // else to it because Opera is not very good at providing it
          // reliably in other circumstances.
          var stacktrace = ex.stacktrace;
  
          var testRE = / line (\d+), column (\d+) in (?:<anonymous function: ([^>]+)>|([^\)]+))\((.*)\) in (.*):\s*$/i,
              lines = stacktrace ? stacktrace.split('\n') : [],
              stack = [],
              parts;
  
          for (var i = 0, j = lines.length; i < j; i += 2) {
              if ((parts = testRE.exec(lines[i]))) {
                  var element = {
                      'line': +parts[1],
                      'column': +parts[2],
                      'func': parts[3] || parts[4],
                      'args': parts[5] ? parts[5].split(',') : [],
                      'url': parts[6]
                  };
  
                  if (!element.func && element.line) {
                      element.func = guessFunctionName(element.url, element.line);
                  }
                  if (element.line) {
                      try {
                          element.context = gatherContext(element.url, element.line);
                      } catch (exc) {}
                  }
  
                  if (!element.context) {
                      element.context = [lines[i + 1]];
                  }
  
                  stack.push(element);
              }
          }
  
          if (!stack.length) {
              return null;
          }
  
          return {
              'mode': 'stacktrace',
              'name': ex.name,
              'message': ex.message,
              'url': document.location.href,
              'stack': stack,
              'useragent': navigator.userAgent,
              'stackstring': stacktrace
          };
      }
  
      /**
       * NOT TESTED.
       * Computes stack trace information from an error message that includes
       * the stack trace.
       * Opera 9 and earlier use this method if the option to show stack
       * traces is turned on in opera:config.
       * @param {Error} ex
       * @return {?Object.<string, *>} Stack information.
       */
      function computeStackTraceFromOperaMultiLineMessage(ex) {
          // Opera includes a stack trace into the exception message. An example is:
          //
          // Statement on line 3: Undefined variable: undefinedFunc
          // Backtrace:
          //   Line 3 of linked script file://localhost/Users/andreyvit/Projects/TraceKit/javascript-client/sample.js: In function zzz
          //         undefinedFunc(a);
          //   Line 7 of inline#1 script in file://localhost/Users/andreyvit/Projects/TraceKit/javascript-client/sample.html: In function yyy
          //           zzz(x, y, z);
          //   Line 3 of inline#1 script in file://localhost/Users/andreyvit/Projects/TraceKit/javascript-client/sample.html: In function xxx
          //           yyy(a, a, a);
          //   Line 1 of function script
          //     try { xxx('hi'); return false; } catch(ex) { TraceKit.report(ex); }
          //   ...
  
          var lines = ex.message.split('\n');
          if (lines.length < 4) {
              return null;
          }
  
          var lineRE1 = /^\s*Line (\d+) of linked script ((?:file|http|https)\S+)(?:: in function (\S+))?\s*$/i,
              lineRE2 = /^\s*Line (\d+) of inline#(\d+) script in ((?:file|http|https)\S+)(?:: in function (\S+))?\s*$/i,
              lineRE3 = /^\s*Line (\d+) of function script\s*$/i,
              stack = [],
              scripts = document.getElementsByTagName('script'),
              inlineScriptBlocks = [],
              parts,
              i,
              len,
              source;
  
          for (i in scripts) {
              if (_has(scripts, i) && !scripts[i].src) {
                  inlineScriptBlocks.push(scripts[i]);
              }
          }
  
          for (i = 2, len = lines.length; i < len; i += 2) {
              var item = null;
              if ((parts = lineRE1.exec(lines[i]))) {
                  item = {
                      'url': parts[2],
                      'func': parts[3],
                      'line': +parts[1]
                  };
              } else if ((parts = lineRE2.exec(lines[i]))) {
                  item = {
                      'url': parts[3],
                      'func': parts[4]
                  };
                  var relativeLine = (+parts[1]); // relative to the start of the <SCRIPT> block
                  var script = inlineScriptBlocks[parts[2] - 1];
                  if (script) {
                      source = getSource(item.url);
                      if (source) {
                          source = source.join('\n');
                          var pos = source.indexOf(script.innerText);
                          if (pos >= 0) {
                              item.line = relativeLine + source.substring(0, pos).split('\n').length;
                          }
                      }
                  }
              } else if ((parts = lineRE3.exec(lines[i]))) {
                  var url = window.location.href.replace(/#.*$/, ''),
                      line = parts[1];
                  var re = new RegExp(escapeCodeAsRegExpForMatchingInsideHTML(lines[i + 1]));
                  source = findSourceInUrls(re, [url]);
                  item = {
                      'url': url,
                      'line': source ? source.line : line,
                      'func': ''
                  };
              }
  
              if (item) {
                  if (!item.func) {
                      item.func = guessFunctionName(item.url, item.line);
                  }
                  var context = gatherContext(item.url, item.line);
                  var midline = (context ? context[Math.floor(context.length / 2)] : null);
                  if (context && midline.replace(/^\s*/, '') === lines[i + 1].replace(/^\s*/, '')) {
                      item.context = context;
                  } else {
                      // if (context) alert("Context mismatch. Correct midline:\n" + lines[i+1] + "\n\nMidline:\n" + midline + "\n\nContext:\n" + context.join("\n") + "\n\nURL:\n" + item.url);
                      item.context = [lines[i + 1]];
                  }
                  stack.push(item);
              }
          }
          if (!stack.length) {
              return null; // could not parse multiline exception message as Opera stack trace
          }
  
          return {
              'mode': 'multiline',
              'name': ex.name,
              'message': lines[0],
              'url': document.location.href,
              'stack': stack,
              'useragent': navigator.userAgent
          };
      }
  
      /**
       * Adds information about the first frame to incomplete stack traces.
       * Safari and IE require this to get complete data on the first frame.
       * @param {Object.<string, *>} stackInfo Stack trace information from
       * one of the compute* methods.
       * @param {string} url The URL of the script that caused an error.
       * @param {(number|string)} lineNo The line number of the script that
       * caused an error.
       * @param {string=} message The error generated by the browser, which
       * hopefully contains the name of the object that caused the error.
       * @return {boolean} Whether or not the stack information was
       * augmented.
       */
      function augmentStackTraceWithInitialElement(stackInfo, url, lineNo, message) {
          var initial = {
              'url': url,
              'line': lineNo
          };
  
          if (initial.url && initial.line) {
              stackInfo.incomplete = false;
  
              if (!initial.func) {
                  initial.func = guessFunctionName(initial.url, initial.line);
              }
  
              if (!initial.context) {
                  initial.context = gatherContext(initial.url, initial.line);
              }
  
              var reference = / '([^']+)' /.exec(message);
              if (reference) {
                  initial.column = findSourceInLine(reference[1], initial.url, initial.line);
              }
  
              if (stackInfo.stack.length > 0) {
                  if (stackInfo.stack[0].url === initial.url) {
                      if (stackInfo.stack[0].line === initial.line) {
                          return false; // already in stack trace
                      } else if (!stackInfo.stack[0].line && stackInfo.stack[0].func === initial.func) {
                          stackInfo.stack[0].line = initial.line;
                          stackInfo.stack[0].context = initial.context;
                          return false;
                      }
                  }
              }
  
              stackInfo.stack.unshift(initial);
              stackInfo.partial = true;
              return true;
          } else {
              stackInfo.incomplete = true;
          }
  
          return false;
      }
  
      /**
       * Computes stack trace information by walking the arguments.caller
       * chain at the time the exception occurred. This will cause earlier
       * frames to be missed but is the only way to get any stack trace in
       * Safari and IE. The top frame is restored by
       * {@link augmentStackTraceWithInitialElement}.
       * @param {Error} ex
       * @return {?Object.<string, *>} Stack trace information.
       */
      function computeStackTraceByWalkingCallerChain(ex, depth) {
          var functionName = /function\s+([_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)?\s*\(/i,
              stack = [],
              funcs = {},
              recursion = false,
              parts,
              item,
              source;
  
          for (var curr = computeStackTraceByWalkingCallerChain.caller; curr && !recursion; curr = curr.caller) {
              if (curr === computeStackTrace || curr === TraceKit.report) {
                  // console.log('skipping internal function');
                  continue;
              }
  
              item = {
                  'url': null,
                  'func': UNKNOWN_FUNCTION,
                  'line': null,
                  'column': null
              };
  
              if (curr.name) {
                  item.func = curr.name;
              } else if ((parts = functionName.exec(curr.toString()))) {
                  item.func = parts[1];
              }
  
              if (typeof item.func === 'undefined') {
                try {
                  item.func = parts.input.substring(0, parts.input.indexOf('{'))
                } catch (e) { }
              }
  
              if ((source = findSourceByFunctionBody(curr))) {
                  item.url = source.url;
                  item.line = source.line;
  
                  if (item.func === UNKNOWN_FUNCTION) {
                      item.func = guessFunctionName(item.url, item.line);
                  }
  
                  var reference = / '([^']+)' /.exec(ex.message || ex.description);
                  if (reference) {
                      item.column = findSourceInLine(reference[1], source.url, source.line);
                  }
              }
  
              if (funcs['' + curr]) {
                  recursion = true;
              }else{
                  funcs['' + curr] = true;
              }
  
              stack.push(item);
          }
  
          if (depth) {
              // console.log('depth is ' + depth);
              // console.log('stack is ' + stack.length);
              stack.splice(0, depth);
          }
  
          var result = {
              'mode': 'callers',
              'name': ex.name,
              'message': ex.message,
              'url': document.location.href,
              'stack': stack,
              'useragent': navigator.userAgent
          };
          augmentStackTraceWithInitialElement(result, ex.sourceURL || ex.fileName, ex.line || ex.lineNumber, ex.message || ex.description);
          return result;
      }
  
      /**
       * Computes a stack trace for an exception.
       * @param {Error} ex
       * @param {(string|number)=} depth
       */
      function computeStackTrace(ex, depth) {
          var stack = null;
          depth = (depth == null ? 0 : +depth);
  
          try {
              // This must be tried first because Opera 10 *destroys*
              // its stacktrace property if you try to access the stack
              // property first!!
              stack = computeStackTraceFromStacktraceProp(ex);
              if (stack) {
                  return stack;
              }
          } catch (e) {
              if (debug) {
                  throw e;
              }
          }
  
          try {
              stack = computeStackTraceFromStackProp(ex);
              if (stack) {
                  return stack;
              }
          } catch (e) {
              if (debug) {
                  throw e;
              }
          }
  
          try {
              stack = computeStackTraceFromOperaMultiLineMessage(ex);
              if (stack) {
                  return stack;
              }
          } catch (e) {
              if (debug) {
                  throw e;
              }
          }
  
          try {
              stack = computeStackTraceByWalkingCallerChain(ex, depth + 1);
              if (stack) {
                  return stack;
              }
          } catch (e) {
              if (debug) {
                  throw e;
              }
          }
  
          return {
              'tracekitResult': 'failedToComputeAnyStackTrace'
          };
      }
  
      /**
       * Logs a stacktrace starting from the previous call and working down.
       * @param {(number|string)=} depth How many frames deep to trace.
       * @return {Object.<string, *>} Stack trace information.
       */
      function computeStackTraceOfCaller(depth) {
          depth = (depth == null ? 0 : +depth) + 1; // "+ 1" because "ofCaller" should drop one frame
          try {
              throw new Error();
          } catch (ex) {
              return computeStackTrace(ex, depth + 1);
          }
      }
  
      computeStackTrace.augmentStackTraceWithInitialElement = augmentStackTraceWithInitialElement;
      computeStackTrace.guessFunctionName = guessFunctionName;
      computeStackTrace.gatherContext = gatherContext;
      computeStackTrace.ofCaller = computeStackTraceOfCaller;
  
      return computeStackTrace;
  }());
  
  /**
   * Extends support for global error handling for asynchronous browser
   * functions. Adopted from Closure Library's errorhandler.js
   */
  TraceKit.extendToAsynchronousCallbacks = function () {
      var _helper = function _helper(fnName) {
          var originalFn = window[fnName];
          window[fnName] = function traceKitAsyncExtension() {
              // Make a copy of the arguments
              var args = _slice.call(arguments);
              var originalCallback = args[0];
              if (typeof (originalCallback) === 'function') {
                  args[0] = TraceKit.wrap(originalCallback);
              }
              // IE < 9 doesn't support .call/.apply on setInterval/setTimeout, but it
              // also only supports 2 argument and doesn't care what "this" is, so we
              // can just call the original function directly.
              if (originalFn.apply) {
                  return originalFn.apply(this, args);
              } else {
                  return originalFn(args[0], args[1]);
              }
          };
      };
  
      _helper('setTimeout');
      _helper('setInterval');
  };
  
  //Default options:
  if (!TraceKit.remoteFetching) {
    TraceKit.remoteFetching = true;
  }
  if (!TraceKit.collectWindowErrors) {
    TraceKit.collectWindowErrors = true;
  }
  if (!TraceKit.linesOfContext || TraceKit.linesOfContext < 1) {
    // 5 lines before, the offending line, 5 lines after
    TraceKit.linesOfContext = 11;
  }
  
  
  
  // Export to global object
  window.TraceKit = TraceKit;
  
  }(window));
  