Move the sourceIds computation from an inline prop expression (recomputed on every render) to a Svelte reactive variable that only recomputes when sources or model actually change.
Also simplified the reduce+spread+filter deduplication pattern to a straightforward loop with Set-based deduplication.
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## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/22279
**Author:** [@Classic298](https://github.com/Classic298)
**Created:** 3/5/2026
**Status:** ❌ Closed
**Base:** `dev` ← **Head:** `perf/memoize-source-ids`
---
### 📝 Commits (1)
- [`88af78c`](https://github.com/open-webui/open-webui/commit/88af78cab8366ddb4e2e3dcda76df013283d8f40) perf: memoize sourceIds computation in ContentRenderer
### 📊 Changes
**1 file changed** (+25 additions, -30 deletions)
<details>
<summary>View changed files</summary>
📝 `src/lib/components/chat/Messages/ContentRenderer.svelte` (+25 -30)
</details>
### 📄 Description
Move the sourceIds computation from an inline prop expression (recomputed on every render) to a Svelte reactive variable that only recomputes when sources or model actually change.
Also simplified the reduce+spread+filter deduplication pattern to a straightforward loop with Set-based deduplication.
### Contributor License Agreement
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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>
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📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/22279
Author: @Classic298
Created: 3/5/2026
Status: ❌ Closed
Base:
dev← Head:perf/memoize-source-ids📝 Commits (1)
88af78cperf: memoize sourceIds computation in ContentRenderer📊 Changes
1 file changed (+25 additions, -30 deletions)
View changed files
📝
src/lib/components/chat/Messages/ContentRenderer.svelte(+25 -30)📄 Description
Move the sourceIds computation from an inline prop expression (recomputed on every render) to a Svelte reactive variable that only recomputes when sources or model actually change.
Also simplified the reduce+spread+filter deduplication pattern to a straightforward loop with Set-based deduplication.
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.