Freeze when jumping timeline on web browser

[Chaperone]

@TheDreadPirate, thank you.

You had found my problem.
At the very beginning, I have Jellyfin not thru a reverse proxy.
Because was so great, I added Jellyfin to the Synology DSM reverse proxy.
Later, I pointed Jellyfin to a Cloudflare Tunnel.

In conclusion, it's been working wrong since the Synology DSM reverse proxy, and worst since the Cloudflare Tunnel.

Now, I can move the cursor over the timeline on my Windows Edge browser, on my Samsung Tizen tv, and on my iPhone.
Also, now on Firefox, I can use the Hardware transcoding.



Thank you!