Remove connection: close headers override

[0xtsukino]

Currently we have to override Connection and Accept-Encoding in order to for a request to work. Need to investigate why these overrides are needed, and find solutions to remove headers override from notarization flow. The request theoretically should work with just headers from user browser history.

Edit 1: overriding request header with accept-encoding: identity is expected behavior

[themighty1]

@0xtsukino, the prover uses accept-encoding: identity to tell the server not to use http compression (like gzip) for the response.
If the server sent a compressed response, the parties would have to decompress it in MPC which would be prohibitively expensive.

[0xtsukino]

Thanks @themighty1 - that makes sense, so accept-encoding: identity is expected behavior.