Simple requests

Simple requests shouldn't trigger preflight


PASS No preflight GET and {"Accept":"test"} 
PASS No preflight HEAD and {"Accept":"test"} 
PASS No preflight POST and {"Accept":"test"} 
PASS No preflight GET and {"accept-language":"test"} 
PASS No preflight HEAD and {"accept-language":"test"} 
PASS No preflight POST and {"accept-language":"test"} 
PASS No preflight GET and {"CONTENT-language":"test"} 
PASS No preflight HEAD and {"CONTENT-language":"test"} 
PASS No preflight POST and {"CONTENT-language":"test"} 
PASS No preflight GET and {"Content-Type":"application/x-www-form-urlencoded"} 
PASS No preflight HEAD and {"Content-Type":"application/x-www-form-urlencoded"} 
PASS No preflight POST and {"Content-Type":"application/x-www-form-urlencoded"} 
PASS No preflight GET and {"content-type":"multipart/form-data"} 
PASS No preflight HEAD and {"content-type":"multipart/form-data"} 
PASS No preflight POST and {"content-type":"multipart/form-data"} 
PASS No preflight GET and {"content-type":"text/plain"} 
PASS No preflight HEAD and {"content-type":"text/plain"} 
PASS No preflight POST and {"content-type":"text/plain"} 
PASS No preflight GET and {"accept":"test","accept-language":"test","content-language":"test","content-type":"text/plain; parameter=whatever"} 
PASS No preflight HEAD and {"accept":"test","accept-language":"test","content-language":"test","content-type":"text/plain; parameter=whatever"} 
PASS No preflight POST and {"accept":"test","accept-language":"test","content-language":"test","content-type":"text/plain; parameter=whatever"} 
FAIL No preflight GET and {"save-data":"on","device-memory":"2.0","dpr":"3.0","width":"1200","viewport-width":"1300"}  A network error occurred.
FAIL No preflight HEAD and {"save-data":"on","device-memory":"2.0","dpr":"3.0","width":"1200","viewport-width":"1300"}  A network error occurred.
FAIL No preflight POST and {"save-data":"on","device-memory":"2.0","dpr":"3.0","width":"1200","viewport-width":"1300"}  A network error occurred.
PASS No preflight Get and {"content-type":"text/plain; parameter=extra_bonus"} 
PASS No preflight post and {"content-type":"text/plain"} 
FAIL Check simple headers (async) assert_unreached: onerror Reached unreachable code