Slow requests with POST data > 1024 bytes

[Umkus]

When a POST request is larger than 1024 bytes - each such request takes just above 1 second to finish.
Additionally in these cases $_SERVER would contain an extra key [HTTP_EXPECT] => 100-continue.

This looks somewhat related to this issue: https://stackoverflow.com/questions/463144/php-http-post-fails-when-curl-data-1024

Reproduces on both current layer versions.

[txase]

Which of the following issues are you hitting?

• You wrote a PHP function that tries to make a request from within the function out to another rest API
• You are trying to make a request from somewhere else to an API Gateway or ALB that is backed by a PHP function, and the request fails

If it's the second case, are you using an API Gateway or ALB?

[Umkus]

It's the second case. I'm sending a POST request through an API gateway.