# Pull Request Template
## Description
Fixes
https://linear.app/chatwoot/issue/CW-5411/actionviewtemplateerror-activestorageunrepresentableerror
### Problem
API endpoints return 500 errors when conversations contain image
attachments that can't be processed by ActiveStorage (e.g., files with
non-ASCII filenames, corrupted images, or malicious XSS filenames).
Root Cause: Commit 6cab74139 removed the representable? safety check
from thumb_url, causing `ActiveStorage::UnrepresentableError` to bubble
up and crash the API when it encountered a malformed image file.
Fix: Rescue `thumb_url` method to catch UnrepresentableError and return
an empty string while logging problematic names for future debugging.
This ensures the messages/attachments api does not break due to a single
corrupted image file.
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
## How Has This Been Tested?
- Added specs
## Checklist:
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [x] Any dependent changes have been merged and published in downstream
modules
9a7318a9db