Let's Encrypt root CA isn't working properly

[pmer]

Prerequisites

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed
  • Although Unable to update filters #115 is related, this is narrower in scope and can be resolved separately

Issue Details

• AdGuard for Safari version: 1.10.4 (macOS App Store) and 1.11.0 (beta)
• Environment name and version: Version 15.3 (16612.4.9.1.7, 16612)
• Operating System: macOS Big Sur 11.6.3 (20G415)
• Filters you use in AdGuard: A hand-made filter hosted on a website that uses a Let's Encrypt certificate
• Any other browser extensions you have installed: None

Expected Behavior

After inputting the URL to a server using a Let's Encrypt certificate in a New filter subscription modal, clicking the Next button should not show an error.

Actual Behavior

A modal shows displaying an error message:

Error occurred
Unfortunately, your custom filter cannot be added due to an unexpected error.

The terminal shows an error message with more details:

Error download filter by url <the troublesome URL>, cause: Error: certificate has expired

Screenshots

Screenshot:

Additional Information

• One thing to try might be updating the Electron version in use: [Bug]: Let's Encrypt root CA isn't working properly  electron/electron#31212

• Running AdGuard for Safari with the environment variable NODE_TLS_REJECT_UNAUTHORIZED=0 resolves the issue but comes a self-evident drawback.

[Birbber]

@pmer Hi! Would you mind sharing the link, so we could reproduce the issue?

[pmer]

Of course!

Hopefully the list https://pdm.me/example-filters.txt could help. It contains one rule which should make the footer at the bottom of GitHub pages disappear, making them visibly shorter.

[Birbber]

@pmer Sorry for the late reply! I've tried adding this filter, and it's reproducible for sure. Will see what we can do about it later on. Thanks.