online::clone: validate user:pass in HTTP_PROXY#4556
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Validate using the http://user:pass@host/ format in HTTP_PROXY and HTTPS_PROXY environment variables.
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Validate using the http://user:pass@host/ format in HTTP_PROXY and HTTPS_PROXY environment variables.
Note that we don't actually have a way to ensure that our proxy was contacted. So this test would pass even if there was a code error that meant that requests went direct to the server, bypassing the proxy.
I certainly don't have a proxy-neutral way to enforce that, offhand... I guess we could expose and endpoint in the remote code that will get headers back, and we could see if a
Viais set. That would probably be effective, but sort of ugh, and assumes that some transparent proxy doesn't add aViaheader itself.