Asset upload freezes browser tab - file uploads but UI hangs

[ypantig]

Bug description

When uploading an asset through the Control Panel (either via the upload button or drag-and-drop), the browser tab completely freezes. No file is uploaded to the server and no network request is made.

Key observations:

• File picker opens normally
• After selecting a file, the browser tab freezes immediately
• No progress indicator appears
• No network request is visible in DevTools Network tab
• No JavaScript errors in the console
• The file IS uploaded successfully (confirmed by checking the filesystem - file appeared with correct timestamp)
• The freeze requires killing the tab

How to reproduce

1. Go to CP → Assets
2. Click Upload or drag a file onto the asset browser
3. Select an image file
4. Browser tab freezes

Tested on a new Statamic install just in case it was something on our project that was causing the error - same issue is showing up. Also created a new install of Statamic 5 for testing, and the upload works fine.

Logs

No errors in laravel.log - the request never seems to reach Laravel's error handling.

Environment

Environment
Laravel Version: 13.5.0
PHP Version: 8.4.6
Composer Version: 2.8.8
Environment: local
Debug Mode: ENABLED
Maintenance Mode: OFF
Timezone: UTC
Locale: en

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: database
Database: sqlite
Logs: stack / single
Mail: mailgun
Queue: database
Session: database

Storage
public/storage: LINKED

Statamic
Addons: 1
Sites: 1
Stache Watcher: Disabled
Static Caching: full
Version: 6.14.0 PRO

Statamic Addons
statamic/seo-pro: 7.5.1

Installation

Fresh statamic/statamic site via CLI

Additional details

Additional context:

• Headless CMS setup with Inertia.js for frontend
• CP routes are excluded from Inertia middleware
• Asset container uses local public disk
• Issue occurs on both local and production (AWS) environments
• Was working on Statamic 5 + Laravel 12 about 4 months ago when it was first tested

[duncanmcclean]

Does it happen every time you upload files, or only certain files? How big are the files you're attempting to upload?

[ypantig]

@duncanmcclean thanks for the response. I was attempting to upload a 4KB SVG file, and a 6KB PNG file. It happens every time I try to upload either one of the two, unfortunately.

[ypantig]

Just wanted to confirm as I was reading through the description again. The file doesn't actually upload. It just stalls. Though when I do add it to the folder manually, it appears in the backend. I updated the description to strike that out - hopefully that helps.

[duncanmcclean]

I'm struggling to reproduce this. Which browser are you using? Does it work on the demo site?

[ypantig]

@duncanmcclean It stalls for me on the demo site, too. I thought maybe it was our image, but I tried an image from Unsplash as well, and encountered the same thing.

Here are the images I was trying to upload if it helps:

• https://ibb.co/WvdXY02d
• https://ibb.co/0p1xnSMG
• https://ibb.co/1Yk51WbN

I can send you a quick recording as well if you'd like.

[duncanmcclean]

Which browser are you using?

I've just tested again on the demo site (with one of those images) in Safari and Chrome but everything works for me. 😞

I can send you a quick recording as well if you'd like.

Yes, please.

[ypantig]

@duncanmcclean I'm using Chrome.

I may have found the issue actually. It's from one of my extensions. I disabled all of them before creating the video and it worked. Looks like it's a conflict with the Request.ly extension.

Thanks for looking into this. Apologies for the inconvenience.