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Comment by miles | Hacker News Reader

Just tested in Windows with a registry file generated via the linked web interface[0]. Dark Reader was not prevented from accessing sites that should have been excluded based on the imported policy, even after a reboot. Has anyone successfully tested Chrome Galvanizer?

[0] https://thehackerblog.com/galvanizer/

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I tested the following on Mac:

1. Block "(star)" from accessing "(star)://mail.google.com"

2. Install the config

3. Go to chrome://policy/ and click "Reload policies"

4. Open Gmail. Dark Reader doesn't work anymore.

Thanks very much - will test on macOS next.

EDIT: It must be me, as I am still not having any luck. I just tested in a slightly older macOS VM (10.12) with Google Chrome 81; even after installing the profile, Dark Reader continues to work on sites that should be excluded.

Author here, can you provide the generated policy for me to take a look at?

Thanks very much for replying.

Here is the generated reg file:

  Windows Registry Editor Version 5.00
  
  [HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome]
  "ExtensionSettings"="{\"*\":{\"runtime_blocked_hosts\":[\"*://ycombinator.com\",\"*://boh.com\"]}}"

Tested in a new Windows 10 x64 (2004) VM with a new install of Google Chrome 81.

How strange, it works for me (although it took a second to propagate) - testing with a Win10 x64 VM as well: https://i.imgur.com/jr534JN.png

If you click "Reload policies" under the chrome://policy page does it kick in after ~15 seconds?

Thank you - it must be me. Had the same issue in a macOS 10.12 VM with Chrome 81. Here's a screen recording of the issue in the Windows 10 x64 (2004) VM: https://tinyapps.neocities.org/cg.mp4 . Tried reloading policies in chrome://policy and waiting 15 seconds as well, but there was no change.

Could it be caused by extension load order?

I've played with it fairly extensively in a brand new Windows 10 VM, trying various permutations, but still cannot get it to work as intended. superasn's suggestion[0] to set site access permissions via Preferences > Extensions > Details (for the extension in question) > "Site access" worked a treat for me.

[0] https://news.ycombinator.com/item?id=23207540

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