Fixes #102; Relates to #103 and #96

src/locator/barcode_locator.js

@@ -199,7 +199,7 @@ function boxFromPatches(patches) {
 function binarizeImage() {
     otsuThreshold(_currentImageWrapper, _binaryImageWrapper);
     _binaryImageWrapper.zeroBorder();
-    if (_config.showCanvas) {
+    if (_config.debug.showCanvas) {
         _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);
     }
 }

src/quagga.js

@@ -358,10 +358,19 @@ function initWorker(cb) {
         cmd: 'init',
         size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()},
         imageData: workerThread.imageData,
-        config: _config
+        config: configForWorker(_config)
     }, [workerThread.imageData.buffer]);
 }
 
+function configForWorker(config) {
+    return {
+        ...config,
+        inputStream: {
+            ...config.inputStream,
+            target: null
+        }
+    };
+}
 
 function workerInterface(factory) {
     /* eslint-disable no-undef*/