When accessing some sites, sometimes primary.css and favicon.icon failed to load with the error code HTTP 406 Not Acceptable. (Ad blocker and user scripts already disabled)

Display Network

When opening on incognito mode

Display Network

Reloading the pages after some time might fix itself, and I also can't reproduce the issue consistently.

Additional details: Chrome 117, Windows 10, South-East Asia, no VPN/Tor.

(Note: I'm honestly not sure if this is an issue with my network or elsewhere, but this is the second time I faced this issue, and it started happening very recently)


1 Answer 1


As of this morning, the application that returned 406 codes has been turned off, and you should no longer be getting these errors.

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