Firefox Klar Content Blocker on iPad Safari blocks font swapping

mozilla-mobile / focus-ios

⚠️ Firefox Focus (iOS) has moved to a new repository. It is now developed and maintained as part of: https://github.com/mozilla-mobile/firefox-ios

Mozilla Public License 2.0

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Firefox Klar Content Blocker on iPad Safari blocks font swapping #1889

Closed 0llie closed 3 years ago

0llie commented 3 years ago

How to reproduce on iPad (pbly iPhone too):

Activate Firefox Klar
open an Angular Material Web App, eg. https://www.flimmo.de See:

Expected:

Manual fixes:

disable Content Blocker, or use only eg BlockBear

References: https://stackoverflow.com/a/67802003/229906

isabelrios commented 3 years ago

@SimonBasca can you please take a look at this issue when you have sometime? Thanks!

SimonBasca commented 3 years ago

I am unable to reproduce this issue on iPad Pro (iOS 14.6) on Safari using content blocker from Firefox Klar 8.1.7. @0llie could you please provide the device and iOS version you are using?

0llie commented 3 years ago

It's an iPad Air 3rd gen, iOS 14.5.1, Klar 8.1.7

SimonBasca commented 3 years ago

Reproducing the issue after going to Focus / Klar and enabling the "Block Web font" option. Disabling this options does not reproduce the issue.

0llie commented 3 years ago

Thanks @SimonBasca. To recap: Resolution: Open Focus/Klar App and disable Web font blocking.

Is not blocking bundled Web Fonts by default open for discussion?

SimonBasca commented 3 years ago

@0llie not sure what you mean by "Is not blocking bundled Web Fonts by default open for discussion?". This" Block Web fonts" option is disabled by default. After enabling it's possible that some websites may not work properly.

0llie commented 3 years ago

Great! Then it's all good. I just can't remember having activated the Web Font blocking.