[PR #19688] [CLOSED] feat: add conditional URL-to-base64 conversion for OpenRouter image handling #40941

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GiteaMirror · 2026-04-25T13:17:56-05:00

GiteaMirror commented

2026-04-25 13:17:56 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/19688
Author: @panuud
Created: 12/2/2025
Status: ❌ Closed

Base: dev ← Head: main

📝 Commits (6)

fe6783c Merge pull request #19030 from open-webui/dev
fc05e0a Merge pull request #19405 from open-webui/dev
e3faec6 Merge pull request #19416 from open-webui/dev
9899293 Merge pull request #19448 from open-webui/dev
140605e Merge pull request #19462 from open-webui/dev
6efa478 feat: add conditional URL-to-base64 conversion for OpenRouter image handling

📊 Changes

1 file changed (+178 additions, -31 deletions)

View changed files

📝 src/lib/components/chat/Chat.svelte (+178 -31)

📄 Description

Pull Request Checklist

Note to first-time contributors: Please open a discussion post in Discussions to discuss your idea/fix with the community before creating a pull request, and describe your changes before submitting a pull request.

＞https://github.com/open-webui/open-webui/issues/19522

This is to ensure large feature PRs are discussed with the community first, before starting work on it. If the community does not want this feature or it is not relevant for Open WebUI as a project, it can be identified in the discussion before working on the feature and submitting the PR.

Before submitting, make sure you've checked the following:

Target branch: Verify that the pull request targets the dev branch. Not targeting the dev branch will lead to immediate closure of the PR.
Description: Provide a concise description of the changes made in this pull request down below.
Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
Documentation: If necessary, update relevant documentation Open WebUI Docs like environment variables, the tutorials, or other documentation sources.
Dependencies: Are there any new dependencies? Have you updated the dependency versions in the documentation?
Testing: Perform manual tests to verify the implemented fix/feature works as intended AND does not break any other functionality. Take this as an opportunity to make screenshots of the feature/fix and include it in the PR description.
Agentic AI Code: Confirm this Pull Request is not written by any AI Agent or has at least gone through additional human review AND manual testing. If any AI Agent is the co-author of this PR, it may lead to immediate closure of the PR.
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?
Title 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

Added conditional URL-to-base64 conversion for handling assistant-sent images when using OpenRouter's API. This ensures proper image formatting compatibility for image generation and editing endpoints, while maintaining backward compatibility for other API providers.

Additional Information

Based on my knowledge, images can only be attached to messages with the user role, both for image inputs and image generation/editing. (In particular, the current script is only set up to handle the image in the user object)

So, I implemented a workaround that:

Extracts image URLs from assistant messages
Converts them to base64 format
Creates a new user role message containing the converted images

This should maintain conversation flow while complying with API requirements

Screenshots

↓

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.

Note

Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in.

_{🔄 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/19688 **Author:** [@panuud](https://github.com/panuud) **Created:** 12/2/2025 **Status:** ❌ Closed **Base:** `dev` ← **Head:** `main` --- ### 📝 Commits (6) - [`fe6783c`](https://github.com/open-webui/open-webui/commit/fe6783c16699911c7be17392596d579333fb110c) Merge pull request #19030 from open-webui/dev - [`fc05e0a`](https://github.com/open-webui/open-webui/commit/fc05e0a6c5d39da60b603b4d520f800d6e36f748) Merge pull request #19405 from open-webui/dev - [`e3faec6`](https://github.com/open-webui/open-webui/commit/e3faec62c58e3a83d89aa3df539feacefa125e0c) Merge pull request #19416 from open-webui/dev - [`9899293`](https://github.com/open-webui/open-webui/commit/9899293f050ad50ae12024cbebee7e018acd851e) Merge pull request #19448 from open-webui/dev - [`140605e`](https://github.com/open-webui/open-webui/commit/140605e660b8186a7d5c79fb3be6ffb147a2f498) Merge pull request #19462 from open-webui/dev - [`6efa478`](https://github.com/open-webui/open-webui/commit/6efa478b918d5f01dc5b1b4425412d5473b05d86) feat: add conditional URL-to-base64 conversion for OpenRouter image handling ### 📊 Changes **1 file changed** (+178 additions, -31 deletions) <details> <summary>View changed files</summary> 📝 `src/lib/components/chat/Chat.svelte` (+178 -31) </details> ### 📄 Description # Pull Request Checklist ### Note to first-time contributors: Please open a discussion post in [Discussions](https://github.com/open-webui/open-webui/discussions) to discuss your idea/fix with the community before creating a pull request, and describe your changes before submitting a pull request. ＞https://github.com/open-webui/open-webui/issues/19522 This is to ensure large feature PRs are discussed with the community first, before starting work on it. If the community does not want this feature or it is not relevant for Open WebUI as a project, it can be identified in the discussion before working on the feature and submitting the PR. **Before submitting, make sure you've checked the following:** - [x] **Target branch:** Verify that the pull request targets the `dev` branch. **Not targeting the `dev` branch will lead to immediate closure of the PR.** - [x] **Description:** Provide a concise description of the changes made in this pull request down below. - [ ] **Changelog:** Ensure a changelog entry following the format of [Keep a Changelog](https://keepachangelog.com/) is added at the bottom of the PR description. - [ ] **Documentation:** If necessary, update relevant documentation [Open WebUI Docs](https://github.com/open-webui/docs) like environment variables, the tutorials, or other documentation sources. - [ ] **Dependencies:** Are there any new dependencies? Have you updated the dependency versions in the documentation? - [x] **Testing:** Perform manual tests to **verify the implemented fix/feature works as intended AND does not break any other functionality**. Take this as an opportunity to **make screenshots of the feature/fix and include it in the PR description**. - [x] **Agentic AI Code:** Confirm this Pull Request is **not written by any AI Agent** or has at least **gone through additional human review AND manual testing**. If any AI Agent is the co-author of this PR, it may lead to immediate closure of the PR. - [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] **Title 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 Added conditional URL-to-base64 conversion for handling assistant-sent images when using OpenRouter's API. This ensures proper image formatting compatibility for image generation and editing endpoints, while maintaining backward compatibility for other API providers. --- ### Additional Information Based on my knowledge, images can only be attached to messages with the user role, both for image inputs and image generation/editing. (In particular, the current script is only set up to handle the image in the user object) So, I implemented a workaround that: 1. Extracts image URLs from assistant messages 2. Converts them to base64 format 3. Creates a new user role message containing the converted images This should maintain conversation flow while complying with API requirements ### Screenshots <img width="800" height="845" alt="image" src="https://github.com/user-attachments/assets/80bf71e3-c20a-4114-a5d4-fe68e9cb8ab3" /> ↓ <img width="774" height="816" alt="image" src="https://github.com/user-attachments/assets/aea6c315-2b7f-4fe5-bb69-25d70f6c46f1" /> ### 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. > [!NOTE] > Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-04-25 13:17:56 -05:00

GiteaMirror closed this issue

2026-04-25 13:17:57 -05:00

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Reference: github-starred/open-webui#40941