Rewrite for /api routes not succesful on post requests

Describe the bug

Off the back of #832 being merged I went to deploy my next app using the latest alpha version 1.19.0-alpha-22.

As part of my config I rewrite /api/graphql to be https://api.example.com/v1/graphql, but all requests to this url fail

Actual behavior

I get a 404 from /api/graphql

Expected behavior

My POST request to resolve

Steps to reproduce

Versions

• OS/Environment: Deployed in AWS, no errors in build and deploy
• @sls-next/serverless-component version: 1.19.0-alpha-22
• Next.js version: 10.0.2

Additional context

I found this same problem on the old rewritten site aswell as our new next site that is proxied through. We see the same 404 on POST requests to our PHP API on /api/auth/login, I suspect POST is just broken on the rewrite functionality?

Checklist

• You have reviewed the README and FAQs, which answers several common questions.
• Please first try using the most recent latest or alpha @sls-next/serverless-component release version, which may have already fixed your issue or implemented the feature you are trying to use. Note that the old serverless-next.js component and the serverless-next.js plugin are deprecated and no longer maintained.

[dphang]

Ah, you are right, I thought I tested it and it worked but let me fix that, thanks!

[benjaminkay93]

Hey, just deployed it now and all looks good, thanks for this, utterly amazing ❤️