HTTP requests are forced to be converted to HTTPS

[GG-o1]

1、httpx -u http://127.0.0.1:89 -debug-resp，it's ok

2、httpx -u http://127.0.0.1:89 -debug-resp -proxy http://127.0.0.1:8080，set burp proxy，request changed.

is there any parameter can be set to resolve this?

[jimen0]

Might share root cause with projectdiscovery/nuclei#3511. It seems httpx first attempts HTTPS and then falls back to HTTP besides HTTP protocol being specified.

This is what I see on proxify even after specifically setting http.

[ehsandeep]

@GG-o1 if you wanted to utilize the predefined schema for probing you can -nsf option to disable httpx's default probing behavior.

   -nfs, -no-fallback-scheme          probe with protocol scheme specified in input 

echo http://0.0.0.0:8000 | httpx -proxy http://0.0.0.0:8080 -nfs

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