Firefox 134 causes webexports with bigger pck files to be unable to cache correctly

[Lortemanden]

Tested versions

This was tested on godot version 4.3.stable and 4.4.dev7.
It was also tested on firefox 133 and 134

System information

Godot v4.4.dev7 - Windows 10 (build 19045) - Multi-window, 2 monitors - OpenGL 3 (Compatibility) - NVIDIA GeForce RTX 3050 (NVIDIA; 32.0.15.6094) - AMD Ryzen 5 5500 (12 threads)

Issue description

After the Firefox 134 update many of our users have had problem using Firefox to play godot games via web exports. It seems that a large pck file causes the Firefox cache to not work correctly, giving the following error: Couldn't load project data at path ".". Is the .pck file missing? If you've renamed the executable, the associated .pck file should also be renamed to match the executable's name (without the extension)

I can get it to work when disabling the cache on our live games but with the MRP I can barely get it to work after refreshing multiple times.

Steps to reproduce

1. Create a empty project
2. Fill the client folder with some big files so the pck size gets above 40 mb
3. Export the project or run it with remote debug using firefox 134
4. Refresh the page a couple of times

Minimal reproduction project (MRP)

I could not upload my MRP since it was more then 10 mb. Instead I have uploaded my MRP with only 1 bloat file called BEEG.png. To reproduce the error you will have to duplicate this file around 20 times.

Firefox_test.zip

[geekley]

Thank you! I have this exact same error. I was wondering what was happening too, thinking I might have done something wrong on the project. Then I tested it on Brave and it just worked, and imagined it could have been some Firefox update issue.

[kryptot7]

I'm running into this exact error! My web game works fine in Microsoft Edge, and it worked fine in Firefox once...but when I refreshed the page, it stopped working and gave me that exact error.
This has happened with a web build uploaded to itch.io, as well as locally when testing the game with the Run in Browser feature.
I'm running Godot 4.3.0 stable on Windows 11 64-bit with Firefox 134.0.1.

[iheartfunnyboys]

I am having the same issue, but don't have any user data saved in my game. @Lortemanden How are you disabling cache?

[Calinou]

This should probably be reported on Mozilla's bug tracker if you can't reproduce it on old Firefox versions. You can find all old versions here: https://ftp.mozilla.org/pub/firefox/releases/

[Patashu]

I am not sure this only happens on Firefox or that it's a new bug. I have a player of my Godot v3.53 game Entwined Time who uses Chrome and occasionally reports the 'is the .pck file missing?' bug to me. At first I thought it only happened if I made multiple updates in quick succession and itch.io decided to return files from different versions so there was a mismatch, but even if I haven't made an update in over a week it will happen randomly some days. I'm not sure if itch.io, Godot or just the general concept of how browsers work is at fault. I think Ctrl+F5 fixes it but the end user shouldn't have to know to do this. (Also one of my users reports, on Firefox, they have to Ctrl+F5 THEN F5 to fix it. Dunno why.)

My .pck file is 67MB, if it matters. And for additional information, this is a game that tends to be played on a daily or weekly basis, so games that are only played once or infrequently might not demonstrate this bug as often.