The upload that was too big
Users can upload photos to their listings. Phone photos fail with '413 Payload Too Large'. Screenshots work fine.
This answers: How do I fix 413 Payload Too Large on uploads? No coding needed. 2 quick decisions.
- How a request travels
- Costs and abuse
Checking your access…
How do I fix 413 Payload Too Large on uploads?
functions limit how large a request body can be, so large files fail when sent through your . Have your server create a signed upload URL after checking the user, then let the browser upload directly to storage. Enforce file type and size limits on the storage itself.
Breaks at Your server: Too big for the function
How it works
2xx
It worked
200 OK · 201 Created · 204 No Content
4xx
The request was wrong or not allowed
400 Bad request · 401 Not signed in · 403 Not allowed · 404 Not found · 413 Too large · 429 Too many
5xx
The server broke
500 Server error · 504 Timed out
Why AI tools write this bug
Generated upload code usually posts files to your own , which works for small test files and fails for real photos.
How to fix it
- Check the size limit in the error.
3 more steps, and a prompt that checks your own app for this bug. Part of Pro.
UnlockCommon questions
- Should I raise the request size limit?
- Hosts often cap it. Direct uploads avoid the limit and the extra bandwidth.