canvas content was not stored to be displayed when wanted

lib/intercept.js

@@ -181,15 +181,15 @@
 	scope.intercept = function intercept({subject: window}, {check, checkStack, ask, notify, prefs}){
 		function getDataURL(object, prefs){
 			return (
-				this &&
+				object &&
 				prefs("storeImageForInspection") &&
 				prefs("showNotifications")?
 					(
-						this instanceof HTMLCanvasElement?
-							this.toDataURL():
+						object instanceof HTMLCanvasElement?
+							object.toDataURL():
 							(
-								this.canvas instanceof HTMLCanvasElement?
-									this.canvas.toDataURL():
+								object.canvas instanceof HTMLCanvasElement?
+									object.canvas.toDataURL():
 									false
 							)
 					):

releaseNotes.txt

@@ -10,6 +10,7 @@ Version 0.5.4:
 	
 	fixes:
 		- window and audio API were always blocked when using any of the "block ..." modes
+		- canvas content was not stored to be displayed when wanted
 	
 	known issues:
 		- if a data URL is blocked the page action button does not appear