Save widgets locally #645
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Save widgets locally #645
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| setWidgetUrl(url); | ||
| }).catch((error) => { | ||
| console.error("Error storing widget data:", error); | ||
| }); |
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Bug: Race Condition in Widget Data Loading
There's a race condition where the widgetUrl is set immediately, but the widget's data is stored asynchronously via a POST request. This can cause the iframe to try loading the widget before its data is available on the server, leading to a "Widget data not found or expired" error or a 404.
khandrew1
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Nov 15, 2025
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Note
Move widget data from URL-encoded payloads to server-side storage with new endpoints and client updates to load via toolId.
widgetDataStorewith 1h TTL and periodic cleanup.POST /api/mcp/resources/widget/store,GET /api/mcp/resources/widget/:toolId,GET /api/mcp/resources/widget-content/:toolId.toolId; return 404 when missing/expired; add no-cache headers for widget content.POSTto store widget data; iframe now loads/api/mcp/resources/widget/{toolId}.widgetUrlearlier; remove base64 encoding/query param flow.Written by Cursor Bugbot for commit f15cf98. This will update automatically on new commits. Configure here.