Bridge and tls-client modifications: https://github.com/bogdanfinn/tls-client/tree/291b8f9e1b86cc35f210bdb6bf44770bf2660ab5

Copyright (c) 2023, Bogdan Finn
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fhttp HTTP/2 changes retain The Go Authors BSD license (source headers retained in pinned archive): https://github.com/bogdanfinn/fhttp/tree/a8b14170ef54dc2355c68ec20951a86750fb7732

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