diff --git a/src/readers/BrowserCodeReader.ts b/src/readers/BrowserCodeReader.ts
index 46f423c..fc0cb82 100644
--- a/src/readers/BrowserCodeReader.ts
+++ b/src/readers/BrowserCodeReader.ts
@@ -1032,8 +1032,13 @@ export class BrowserCodeReader {
     /**
      * The HTML canvas element context.
      */
-    let captureCanvasContext = captureCanvas.getContext('2d');
-
+    let captureCanvasContext;
+    try {
+        captureCanvasContext = elem.getContext('2d', { willReadFrequently: true }) as CanvasRenderingContext2D;
+    } catch (e) {
+        captureCanvasContext = elem.getContext('2d');
+    }
+    
     // cannot proceed w/o this
     if (!captureCanvasContext) {
       throw new Error('Couldn\'t create canvas for visual element scan.');