I can't send POST method

[turbobin]

hi,
I meet a strange problem, when I choose POST method to send, it always turn on OPTIONS, why ? look at the image:

[liyasthomas]

@turbobin Thanks for reporting the bug. Sorry for the inconveniences caused. Could you please share the API endpoints so that we could run some manual tests.

We couldn't reproduce the issue with any other endpoints. Meanwhile, you can try sending requests in Content Type: application/json and see if the issue persists.

[NBTX]

The OPTIONS request being sent first is a CORS preflight request that gets made automatically when POSTing data to a server. The POST request doesn't get sent as the OPTIONS preflight request is failing.

This is a 'feature' of the browser that we have no control over, so this issue will require use of the Postwoman proxy.

EDIT: You can read more about preflight requests here; https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request

[NBTX]

Also @liyasthomas we could perhaps try and detect this (for the purposes of prompting the user to turn on the proxy) by sending our own preflight request first if the proxy is turned off (i.e. just making a request to OPTIONS) - we'd get an 'opaque' response but it would be enough to know it's going to fail and therefore know that we need to prompt the user with a message.

[liyasthomas]

Thats doable. Now we check Access-Control-Allow-Origin: * to detect whether CORS occur or not. Think we could op for this method instead.

[liyasthomas]

Closing this issues since it's a possible duplicate of #274