Ignore chrome extension iframes (#106)

manifest.json

@@ -31,7 +31,7 @@
     "permissions": ["activeTab", "storage", "notifications"],
     "host_permissions": ["http://*/*", "https://*/*"],
     "update_url": "http://clients2.google.com/service/update2/crx",
-    "version":"2.0.4",
+    "version":"2.0.5",
     "options_page": "assets/options.html",
     "icons": {
         "16": "assets/icon-16.png",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "search_and_replace",
-  "version": "2.0.4",
+  "version": "2.0.5",
   "resolutions": {
     "author": "Chris Taylor <[email protected]>"
   },

src/elements.ts

@@ -20,7 +20,13 @@ export function isBlobIframe(el: Element) {
 
 export function getIframeElements(document: Document, blob = false): HTMLIFrameElement[] {
     return Array.from(<NodeListOf<HTMLIFrameElement>>document.querySelectorAll('iframe')).filter(
-        (iframe) => iframe.src.length && (blob ? isBlobIframe(iframe) : !isBlobIframe(iframe))
+        (iframe) =>
+            // We don't want empty iframes
+            iframe.src.length &&
+            // We don't want to count iframes injected by other chrome extensions
+            !iframe.src.startsWith('chrome-extension://') &&
+            // We may or may not want blob iframes
+            (blob ? isBlobIframe(iframe) : !isBlobIframe(iframe))
     )
 }