Request format and limits
The upload was too large
request_too_large
The request was bigger than this site can accept in one attempt.
HTTP 413·Request format and limits
What it means
What happened
The request was bigger than this site can accept in one attempt.
Why
Why it might have happened
- The file, note, link data, or message may be over the site limit.
- Extra browser or app data may have made the request larger than expected.
Next steps
What you can try
- Reduce the size or split the content into smaller pieces.
- Remove large generated output, attachments, or repeated data.
- Try again after the request is below the limit shown in the message.
Related
Related error help
Still stuck?
Get help
If the error keeps happening, contact support and include request_too_large plus what you were trying to do on attn.ca.