fix: recovery quirks in Firefox and Chromium #807
Merged
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This PR fixes small quirks that did not break recovery, but made it bit confusing or inefficient.
fix: duplicated recovery tabs in Chromium
Deduplicate
onErrorOccurred
events: sometimes Chrome produces two, possibly due to lack of async functions in webRequest APIsCloses #805
fix: skip requests from DNS fixup logic in Firefox
Firefox automatically adds 'www.' to TLD+1 names if initial DNS lookup failed.
This produced bogus request+error which recovery logic is now aware of and ignores.
Closes #804
Other
onErrorOccurred
non-async (only Firefox supports those)webRequest.ResourceType
=main_frame