From 0625b4a11038307673a4fcd9689e0955e10ebacf Mon Sep 17 00:00:00 2001
From: Kevin Serrano <kevin.serrano@consensys.net>
Date: Tue, 28 Mar 2017 14:30:39 -0400
Subject: [PATCH] Fix injection logic.

---
 app/scripts/contentscript.js | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/app/scripts/contentscript.js b/app/scripts/contentscript.js
index 09c1841bf..9a390e580 100644
--- a/app/scripts/contentscript.js
+++ b/app/scripts/contentscript.js
@@ -65,14 +65,27 @@ function setupStreams () {
 }
 
 function shouldInjectWeb3 () {
-  return isAllowedSuffix(window.location.href)
+  return doctypeCheck() || suffixCheck()
 }
 
-function isAllowedSuffix (testCase) {
+function doctypeCheck () {
   const doctype = window.document.doctype
   if (doctype) {
     return doctype.name === 'html'
   } else {
-    return true
+    return false
   }
 }
+
+function suffixCheck() {
+  var prohibitedTypes = ['xml', 'pdf']
+  var currentUrl = window.location.href
+  var currentRegex
+  for (let i = 0; i < prohibitedTypes.length; i++) {
+    currentRegex = new RegExp(`\.${prohibitedTypes[i]}$`)
+    if (currentRegex.test(currentUrl)) {
+      return false
+    }
+  }
+  return true
+}