| CONSOLE MESSAGE: Content blocker prevented frame displaying http://127.0.0.1:8000/contentextensions/frame-url.html from loading a resource from http://127.0.0.1:8000/contentextensions/resources/iframe.html | |
| CONSOLE MESSAGE: Resource blocked by content blocker | |
| CONSOLE MESSAGE: Fetch API cannot load http://127.0.0.1:8000/contentextensions/resources/iframe.html due to access control checks. | |
| ALERT: fetch was blocked | |