CORS API calls not working with SPDY enabled in chrome

I am using axios for my reactjs project. The backend server for API is hosted on nginx over ssl and has spdy protocol enabled. Does it work with alternate protocols like SPDY?

Chrome is blocking the request with the following error bundle.js:55816 OPTIONS https://axz.in/abc/token net::ERR_SPDY_PROTOCOL_ERROR

Chrome Debug Log as below

t=8819 [st=  0] +REQUEST_ALIVE  [dt=120]
t=8819 [st=  0]   +URL_REQUEST_DELEGATE  [dt=2]
t=8819 [st=  0]      DELEGATE_INFO  [dt=1]
                     --> delegate_info = "extension Adblock Plus"
t=8820 [st=  1]      DELEGATE_INFO  [dt=1]
                     --> delegate_info = "extension AdBlock"
t=8821 [st=  2]   -URL_REQUEST_DELEGATE
t=8821 [st=  2]   +URL_REQUEST_START_JOB  [dt=117]
                   --> load_flags = 34626 (BYPASS_CACHE | DO_NOT_SAVE_COOKIES | DO_NOT_SEND_AUTH_DATA | DO_NOT_SEND_COOKIES | MAYBE_USER_GESTURE | VERIFY_EV_CERT)
                   --> method = "OPTIONS"
                   --> priority = "LOW"
                   --> url = "https://axz.in/abc/token"
t=8821 [st=  2]      URL_REQUEST_DELEGATE  [dt=0]
t=8821 [st=  2]      HTTP_CACHE_GET_BACKEND  [dt=0]
t=8821 [st=  2]      URL_REQUEST_DELEGATE  [dt=0]
t=8821 [st=  2]     +HTTP_STREAM_REQUEST  [dt=0]
t=8821 [st=  2]        HTTP_STREAM_REQUEST_STARTED_JOB
                       --> source_dependency = 474195 (HTTP_STREAM_JOB)
t=8821 [st=  2]        HTTP_STREAM_REQUEST_BOUND_TO_JOB
                       --> source_dependency = 474195 (HTTP_STREAM_JOB)
t=8821 [st=  2]     -HTTP_STREAM_REQUEST
t=8821 [st=  2]     +HTTP_TRANSACTION_SEND_REQUEST  [dt=1]
t=8822 [st=  3]        HTTP_TRANSACTION_HTTP2_SEND_REQUEST_HEADERS
                       --> :host: ayz.in
                           :method: OPTIONS
                           :path: /abc/token
                           :scheme: https
                           :version: HTTP/1.1
                           accept: */*
                           accept-encoding: gzip, deflate, sdch
                           accept-language: en-US,en;q=0.8
                           access-control-request-headers: accept, authorization, content-type
                           access-control-request-method: POST
                           cache-control: no-cache
                           origin: http://localhost:8000
                           pragma: no-cache
                           referer: http://localhost:8000/
                           user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36
t=8822 [st=  3]     -HTTP_TRANSACTION_SEND_REQUEST
t=8822 [st=  3]      HTTP_TRANSACTION_READ_HEADERS  [dt=116]
                     --> net_error = -337 (ERR_SPDY_PROTOCOL_ERROR)
t=8938 [st=119]   -URL_REQUEST_START_JOB
                   --> net_error = -337 (ERR_SPDY_PROTOCOL_ERROR)
t=8938 [st=119]    URL_REQUEST_DELEGATE  [dt=0]
t=8939 [st=120] -REQUEST_ALIVE
                 --> net_error = -337 (ERR_SPDY_PROTOCOL_ERROR)

[chuwik]

Hi @rajchourasia To make sure it’s not a CORS related issue, maybe try opening your website with Chrome with these flags: “–disable-web-security --user-data-dir”. If with this you get it working fine, then you have a problem with CORS 😃

[WhyIExist]

Did anyone got some solution… I’m badly stuck in same issue