The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
Use nsCrossSiteListenerProxy.h helpers to implement CORS support.
Several CORS fixes and lots of CORS tests.
Fixes:
Use empty string stream if response has no stream.
Parse Access-Control-Expose-Headers correctly.
Copy over remaining InternalRequest constructor attributes and set unsafe request flag.
Call FailWithNetworkError() in more cases.
Add non-simple Request headers to unsafeHeaders list for CORS check.
Do not AsyncOpen channel directly when CORS preflight is required.
Fix check for simple request method (was checking the opposite condition).
