PHP serve MP4 - Chrome “Provisional headers are shown/request is not finished yet” bug

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PHP

streaming

Chromium

Thanks in advanced!!!

I want to check for users' subscription before allow them to see the video, for this reason I use PHP to interact with Stripe to check for user's subscription, and than used PHP script to serve MP4 to browser

It works fine the first time a video is played in Google Chrome (Using HTML5 player)... But when I close the video and play it again, the video doesn't play anymore... I can NOT also reload the current page. It's like server stops working.

When I inspect the 1st video request (the one which played), in the Timing tab i see: "CAUTION: request is not finished yet!"

When I inspect the 2nd video request (the one did not play), in Headers tab it says "[caution sign] Provisional headers are shown"

everything worked as expected in Safari or Firefox

Anyone has any idea what is going on? The only way for the video to play again is to close the current tab, enter the site again. Reloading doesn't work!