Created attachment 467066 [details]
Image showing TCP connection created again for another POST

On any version of wpewebkit, carrying out multiple POST fetch request does not reuse the TCP connection and instead creates a new connection for each request.
This occurs on wpewebkit 2.22, 2.28, and epiphany browser running WebKitGTK 2.38.6

For example with:
fetch('https://reqres.in/api/articles', {  method: "POST", body: JSON.stringify({ title: 'Fetch POST Request Example' }) });

On Chrome two calls to the above code reuse the connection from the first call.
On wpewebkit it is not reused.
[See image]

It is my understanding that persistent connections should be used here because the request and response headers have connection: keep-alive. Persistent connections should keep the TCP connection so that other fetches to the url can reuse the connection.

Question: Should multiple POST fetch requests reuse their connection like in Chrome or create a new connection for each request as seen?

Thanks.