text: // jsQR is concatenated by gulp
  
  self.addEventListener('message', function (e) {
      try {
          var decoded = jsQR(e.data.data, e.data.width, e.data.height)
          if (decoded) {
              postMessage(decoded.data)
          } else {
              postMessage(null)
          }
      } catch (err) {
          postMessage(null)
      }
  })
  