Some models return reasoning_content instead of content. In such a case, title_string ends None and further find method fails.
Pull Request Checklist
Note to first-time contributors: Please open a discussion post in Discussions and describe your changes before submitting a pull request.
Before submitting, make sure you've checked the following:
[ x ] Target branch: Please verify that the pull request targets the dev branch.
[ x ] Description: Provide a concise description of the changes made in this pull request.
[ x ] Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
[ x ] Documentation: Have you updated relevant documentation Open WebUI Docs, or other documentation sources?
[ x ] Dependencies: Are there any new dependencies? Have you updated the dependency versions in the documentation?
[ x ] Testing: Have you written and run sufficient tests to validate the changes?
[ x ] Code review: Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?
[ x ] Prefix: To clearly categorize this pull request, prefix the pull request title using one of the following:
BREAKING CHANGE: Significant changes that may affect compatibility
build: Changes that affect the build system or external dependencies
ci: Changes to our continuous integration processes or workflows
chore: Refactor, cleanup, or other non-functional code changes
docs: Documentation update or addition
feat: Introduces a new feature or enhancement to the codebase
fix: Bug fix or error correction
i18n: Internationalization or localization changes
perf: Performance improvement
refactor: Code restructuring for better maintainability, readability, or scalability
style: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc.)
test: Adding missing tests or correcting existing tests
WIP: Work in progress, a temporary label for incomplete or ongoing work
Changelog Entry
Description
For reasoning models, chat throws "'NoneType' object has no attribute 'find'" error because the reasnonig models return reasoning_content instead of content. This fix implements fallback to reasoning_content if content is empty.
Added
[List any new features, functionalities, or additions]
Changed
[List any changes, updates, refactorings, or optimizations]
Deprecated
[List any deprecated functionality or features that have been removed]
Removed
[List any removed features, files, or functionalities]
Fixed
[List any fixes, corrections, or bug fixes]
Security
[List any new or updated security-related changes, including vulnerability fixes]
Breaking Changes
BREAKING CHANGE: [List any breaking changes affecting compatibility or functionality]
Additional Information
[Insert any additional context, notes, or explanations for the changes]
[Reference any related issues, commits, or other relevant information]
Screenshots or Videos
[Attach any relevant screenshots or videos demonstrating the changes]
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.
## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/18080
**Author:** [@xhejtman](https://github.com/xhejtman)
**Created:** 10/6/2025
**Status:** ❌ Closed
**Base:** `dev` ← **Head:** `title-fix`
---
### 📝 Commits (2)
- [`c547907`](https://github.com/open-webui/open-webui/commit/c547907193544e2e304e0b0c47f900e5ff92163d) Fix title_string is NoneType error
- [`9bc16d5`](https://github.com/open-webui/open-webui/commit/9bc16d58c93d7cba7f44909cf443e0f2a99e87ed) Merge branch 'dev' into title-fix
### 📊 Changes
**1 file changed** (+9 additions, -7 deletions)
<details>
<summary>View changed files</summary>
📝 `backend/open_webui/utils/middleware.py` (+9 -7)
</details>
### 📄 Description
Some models return reasoning_content instead of content. In such a case, `title_string` ends None and further `find` method fails.
# Pull Request Checklist
### Note to first-time contributors: Please open a discussion post in [Discussions](https://github.com/open-webui/open-webui/discussions) and describe your changes before submitting a pull request.
**Before submitting, make sure you've checked the following:**
- [ x ] **Target branch:** Please verify that the pull request targets the `dev` branch.
- [ x ] **Description:** Provide a concise description of the changes made in this pull request.
- [ x ] **Changelog:** Ensure a changelog entry following the format of [Keep a Changelog](https://keepachangelog.com/) is added at the bottom of the PR description.
- [ x ] **Documentation:** Have you updated relevant documentation [Open WebUI Docs](https://github.com/open-webui/docs), or other documentation sources?
- [ x ] **Dependencies:** Are there any new dependencies? Have you updated the dependency versions in the documentation?
- [ x ] **Testing:** Have you written and run sufficient tests to validate the changes?
- [ x ] **Code review:** Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?
- [ x ] **Prefix:** To clearly categorize this pull request, prefix the pull request title using one of the following:
- **BREAKING CHANGE**: Significant changes that may affect compatibility
- **build**: Changes that affect the build system or external dependencies
- **ci**: Changes to our continuous integration processes or workflows
- **chore**: Refactor, cleanup, or other non-functional code changes
- **docs**: Documentation update or addition
- **feat**: Introduces a new feature or enhancement to the codebase
- **fix**: Bug fix or error correction
- **i18n**: Internationalization or localization changes
- **perf**: Performance improvement
- **refactor**: Code restructuring for better maintainability, readability, or scalability
- **style**: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc.)
- **test**: Adding missing tests or correcting existing tests
- **WIP**: Work in progress, a temporary label for incomplete or ongoing work
# Changelog Entry
### Description
- For reasoning models, chat throws "'NoneType' object has no attribute 'find'" error because the reasnonig models return `reasoning_content` instead of `content`. This fix implements fallback to `reasoning_content` if `content` is empty.
### Added
- [List any new features, functionalities, or additions]
### Changed
- [List any changes, updates, refactorings, or optimizations]
### Deprecated
- [List any deprecated functionality or features that have been removed]
### Removed
- [List any removed features, files, or functionalities]
### Fixed
- [List any fixes, corrections, or bug fixes]
### Security
- [List any new or updated security-related changes, including vulnerability fixes]
### Breaking Changes
- **BREAKING CHANGE**: [List any breaking changes affecting compatibility or functionality]
---
### Additional Information
- [Insert any additional context, notes, or explanations for the changes]
- [Reference any related issues, commits, or other relevant information]
### Screenshots or Videos
- [Attach any relevant screenshots or videos demonstrating the changes]
### Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms.
---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/18080
Author: @xhejtman
Created: 10/6/2025
Status: ❌ Closed
Base:
dev← Head:title-fix📝 Commits (2)
c547907Fix title_string is NoneType error9bc16d5Merge branch 'dev' into title-fix📊 Changes
1 file changed (+9 additions, -7 deletions)
View changed files
📝
backend/open_webui/utils/middleware.py(+9 -7)📄 Description
Some models return reasoning_content instead of content. In such a case,
title_stringends None and furtherfindmethod fails.Pull Request Checklist
Note to first-time contributors: Please open a discussion post in Discussions and describe your changes before submitting a pull request.
Before submitting, make sure you've checked the following:
devbranch.Changelog Entry
Description
reasoning_contentinstead ofcontent. This fix implements fallback toreasoning_contentifcontentis empty.Added
Changed
Deprecated
Removed
Fixed
Security
Breaking Changes
Additional Information
Screenshots or Videos
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.