behind-the-scene broken at gmail #62

Prerequisites

• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
• This is not a support issue or a question
  • Support issues and questions are handled at /r/uMatrix
• I tried to reproduce the issue when...
  • uMatrix is the only extension
  • uMatrix with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uMatrix
• I checked the documentation to understand that the issue I report is not a normal behavior

Description

On gmail, behind-the-scene requests are blocked unconditionally and th refresh button on the for behind-the-scene panel doesn't work. BTS Refresh button broke with v1.3.0 and BTS network requests are being blocked unconditionally since 1.3.8.

A specific URL where the issue occurs

https://mail.google.com/mail/u/0/?tab=wm#inbox

Steps to Reproduce

1. Disable ALL extensions and install uMatrix from https://github.com/gorhill/uMatrix/releases/tag/1.3.15b2

2. Once installed, visit gmail and login with your credentials

3. Open the logger and refresh the page to populate, once loaded, page will appear broken, because behind-the-scene network requests are being blocked unconditionally. even though it's default installation where matrix is set to off for behind-the-scene.

4. Click on a behind-the-scene network request to open up behind-the-scene popup panel and now click on the refresh button, the tab doesn't refresh.

Supporting evidence

Errors collected via Chromium on v1.3.0 regarding the refresh button issue -

Broken refresh button at BTS panel and BTS network requests being blocked unconditionally -

https://i.gyazo.com/014e222d6d50f97d57c3d66869f0b0c8.mp4

Your environment

• uMatrix version: 1.13.15.2
• Browser Name and version: Chromium 71
• Operating System and version: Win 10 x64