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feat: send HTTP/2 HEADER_TABLE_SIZE and MAX_CONCURRENT_STREAMS from browser fingerprints - #560
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Adds `header_table_size` to `Http2Fingerprint` and sets it to 65536 for the Chrome and Firefox profiles, matching what both browsers send in their SETTINGS frame. reqwest is patched to the commit exposing `http2_header_table_size` (seanmonstar/reqwest#3105) until it is released, and the hyper-util and tower-http forks are bumped to their synced heads to satisfy its requirements. Related to #385
… fingerprints `initial_connection_window_size` is the target window, h2 subtracts the default 65535 to get the WINDOW_UPDATE increment. The older Chrome and Firefox profiles passed the on-wire increment instead, so they emitted 15597570 and 12451842 rather than the 15663105 and 12517377 the browsers send. chrome151 and ios_18 already use the full window size. Related to #385
Chrome 100 to 116 send 1000 and iOS sends 100, using the `http2_max_concurrent_streams` from the same reqwest change. Related to #385
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Pijukatel
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Oct 9, 2026
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Uses the new reqwest HTTP/2 settings (pinned to git until released) and fixes the WINDOW_UPDATE of older Chrome and Firefox profiles.
Closes #385