diff --git a/canvasblocker.xpi b/canvasblocker.xpi
index f9759d4..df302b6 100644
Binary files a/canvasblocker.xpi and b/canvasblocker.xpi differ
diff --git a/data/inject.js b/data/inject.js
index d5867e5..96614c2 100644
--- a/data/inject.js
+++ b/data/inject.js
@@ -242,7 +242,7 @@
 	// Communication with main.js
 	
 	function checkAbout(){
-		return document.location.protocol === "about:");
+		return document.location.protocol === "about:";
 	}
 	
 	function checkPDF(blocking){
diff --git a/lib/main.js b/lib/main.js
index ee39930..96af2bf 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -87,7 +87,7 @@
 	});
 	
 	function checkURL(url){
-		var url = new URL(url);
+		url = new URL(url);
 		var mode = "block";
 		switch (prefs.blockMode){
 			case "blockEverything":