Created attachment 350180 [details] 1 request If I make multiple xhr requests to the same endpoint, web inspector show response body only for the last request, and show "an error occured trying to load the resource" for others (screenshots were attached). <!doctype html> <html prefix="og: http://ogp.me/ns#" lang="en"> <head> <meta charset="utf-8"> </head> <body> <script> (async () => { await fetch('https://api.github.com/users/andrepolischuk') await fetch('https://api.github.com/users/andrepolischuk') await fetch('https://api.github.com/users/andrepolischuk') })() </script> </body> </html> It caught for all methods: get, post... If I add a random string at the end of endpoint, all responses are displayed.
Created attachment 350181 [details] 2 request
Created attachment 350182 [details] 3 request
Created attachment 350183 [details] test page
Cannot reproduce it on the tip of tree WebKit.