Mediastream.stop() is deprecated since Chrome 45, and does not work anymore in Chrome 47 (https://developers.google.com/web/updates/2015/07/mediastream-deprecations?hl=en)

fixed stopping each track individually. See also https://developer.mozilla.org/en/docs/Web/API/MediaStream for browser compatibility. Library  gulp-livereload was missing for building the sources.

Author: Severin Stöckli

package.json

@@ -28,6 +28,7 @@
     "gulp-footer": "^1.0.5",
     "gulp-header": "^1.0.5",
     "gulp-jshint": "^1.6.1",
+    "gulp-livereload": "^3.8.1",
     "gulp-sourcemaps": "^1.1.5",
     "gulp-uglify": "^0.3.0",
     "zuul": "^1.10.2"

src/qcode-decoder.js

@@ -178,7 +178,7 @@ QCodeDecoder.prototype.decodeFromImage = function (img, cb) {
  */
 QCodeDecoder.prototype.stop = function() {
   if (this.stream) {
-    this.stream.stop();
+    this.stream.getTracks().forEach(function (track) { track.stop(); });
     this.stream = undefined;
   }