text: //download.js v4.2, by dandavis; 2008-2016. [CCBY2] see http://danml.com/download.html for tests/usage
  // v1 landed a FF+Chrome compat way of downloading strings to local un-named files, upgraded to use a hidden frame and optional mime
  // v2 added named files via a[download], msSaveBlob, IE (10+) support, and window.URL support for larger+faster saves than dataURLs
  // v3 added dataURL and Blob Input, bind-toggle arity, and legacy dataURL fallback was improved with force-download mime and base64 support. 3.1 improved safari handling.
  // v4 adds AMD/UMD, commonJS, and plain browser support
  // v4.1 adds url download capability via solo URL argument (same domain/CORS only)
  // v4.2 adds semantic variable names, long (over 2MB) dataURL support, and hidden by default temp anchors
  // https://github.com/rndme/download
  
  (function(root, factory) {
      if (typeof define === 'function' && define.amd) {
          // AMD. Register as an anonymous module.
          define([], factory);
      } else if (typeof exports === 'object') {
          // Node. Does not work with strict CommonJS, but
          // only CommonJS-like environments that support module.exports,
          // like Node.
          module.exports = factory();
      } else {
          // Browser globals (root is window)
          root.download = factory();
      }
  }(this, function() {
  
      return function download(data, strFileName, strMimeType) {
  
          var self = window, // this script is only for browsers anyway...
              defaultMime = "application/octet-stream", // this default mime also triggers iframe downloads
              mimeType = strMimeType || defaultMime,
              payload = data,
              url = !strFileName && !strMimeType && payload,
              anchor = document.createElement("a"),
              toString = function(a) { return String(a); },
              myBlob = (self.Blob || self.MozBlob || self.WebKitBlob || toString),
              fileName = strFileName || "download",
              blob,
              reader;
          myBlob = myBlob.call ? myBlob.bind(self) : Blob;
  
          if (String(this) === "true") { //reverse arguments, allowing download.bind(true, "text/xml", "export.xml") to act as a callback
              payload = [payload, mimeType];
              mimeType = payload[0];
              payload = payload[1];
          }
  
  
          if (url && url.length < 2048) { // if no filename and no mime, assume a url was passed as the only argument
              fileName = url.split("/").pop().split("?")[0];
              anchor.href = url; // assign href prop to temp anchor
              if (anchor.href.indexOf(url) !== -1) { // if the browser determines that it's a potentially valid url path:
                  var ajax = new XMLHttpRequest();
                  ajax.open("GET", url, true);
                  ajax.responseType = 'blob';
                  ajax.onload = function(e) {
                      download(e.target.response, fileName, defaultMime);
                  };
                  setTimeout(function() { ajax.send(); }, 0); // allows setting custom ajax headers using the return:
                  return ajax;
              } // end if valid url?
          } // end if url?
  
  
          //go ahead and download dataURLs right away
          if (/^data\:[\w+\-]+\/[\w+\-]+[,;]/.test(payload)) {
  
              if (payload.length > (1024 * 1024 * 1.999) && myBlob !== toString) {
                  payload = dataUrlToBlob(payload);
                  mimeType = payload.type || defaultMime;
              } else {
                  return navigator.msSaveBlob ? // IE10 can't do a[download], only Blobs:
                      navigator.msSaveBlob(dataUrlToBlob(payload), fileName) :
                      saver(payload); // everyone else can save dataURLs un-processed
              }
  
          } //end if dataURL passed?
  
          blob = payload instanceof myBlob ?
              payload :
              new myBlob([payload], { type: mimeType });
  
  
          function dataUrlToBlob(strUrl) {
              var parts = strUrl.split(/[:;,]/),
                  type = parts[1],
                  decoder = parts[2] == "base64" ? atob : decodeURIComponent,
                  binData = decoder(parts.pop()),
                  mx = binData.length,
                  i = 0,
                  uiArr = new Uint8Array(mx);
  
              for (i; i < mx; ++i) uiArr[i] = binData.charCodeAt(i);
  
              return new myBlob([uiArr], { type: type });
          }
  
          function saver(url, winMode) {
  
              if ('download' in anchor) { //html5 A[download]
                  anchor.href = url;
                  anchor.setAttribute("download", fileName);
                  anchor.className = "download-js-link";
                  anchor.innerHTML = "downloading...";
                  anchor.style.display = "none";
                  document.body.appendChild(anchor);
                  setTimeout(function() {
                      anchor.click();
                      document.body.removeChild(anchor);
                      if (winMode === true) { setTimeout(function() { self.URL.revokeObjectURL(anchor.href); }, 250); }
                  }, 66);
                  return true;
              }
  
              // handle non-a[download] safari as best we can:
              if (/(Version)\/(\d+)\.(\d+)(?:\.(\d+))?.*Safari\//.test(navigator.userAgent)) {
                  url = url.replace(/^data:([\w\/\-\+]+)/, defaultMime);
                  if (!window.open(url)) { // popup blocked, offer direct download:
                      if (confirm("Displaying New Document\n\nUse Save As... to download, then click back to return to this page.")) { location.href = url; }
                  }
                  return true;
              }
  
              //do iframe dataURL download (old ch+FF):
              var f = document.createElement("iframe");
              document.body.appendChild(f);
  
              if (!winMode) { // force a mime that will download:
                  url = "data:" + url.replace(/^data:([\w\/\-\+]+)/, defaultMime);
              }
              f.src = url;
              setTimeout(function() { document.body.removeChild(f); }, 333);
  
          } //end saver
  
  
  
  
          if (navigator.msSaveBlob) { // IE10+ : (has Blob, but not a[download] or URL)
              return navigator.msSaveBlob(blob, fileName);
          }
  
          if (self.URL) { // simple fast and modern way using Blob and URL:
              saver(self.URL.createObjectURL(blob), true);
          } else {
              // handle non-Blob()+non-URL browsers:
              if (typeof blob === "string" || blob.constructor === toString) {
                  try {
                      return saver("data:" + mimeType + ";base64," + self.btoa(blob));
                  } catch (y) {
                      return saver("data:" + mimeType + "," + encodeURIComponent(blob));
                  }
              }
  
              // Blob but not URL support:
              reader = new FileReader();
              reader.onload = function(e) {
                  saver(this.result);
              };
              reader.readAsDataURL(blob);
          }
          return true;
      }; /* end download() */
  }));