fix(google-maps): static maps proxy, color mode, and bug fixes#587
fix(google-maps): static maps proxy, color mode, and bug fixes#587
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Combined commits: - fix(plausible): use consistent window reference in clientInit stub
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- Add googleStaticMapsProxy config for CORS fixes and caching (#380, #83) - API key stored server-side only (not exposed to client) - Referer validation to prevent external abuse - Add mapIds prop for light/dark color mode support (#539) - Fix MarkerClusterer optional peer dep with inline types (#540) - Add PinElement cleanup on unmount - Fix importLibrary cache to retry on failure Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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| const refererUrl = new URL(referer).host | ||
| if (refererUrl !== host) { | ||
| throw createError({ | ||
| statusCode: 403, | ||
| statusMessage: 'Invalid referer', |
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| const refererUrl = new URL(referer).host | |
| if (refererUrl !== host) { | |
| throw createError({ | |
| statusCode: 403, | |
| statusMessage: 'Invalid referer', | |
| try { | |
| const refererUrl = new URL(referer).host | |
| if (refererUrl !== host) { | |
| throw createError({ | |
| statusCode: 403, | |
| statusMessage: 'Invalid referer', | |
| }) | |
| } | |
| } catch (error) { | |
| // Re-throw Nuxt errors as-is | |
| if (error && typeof error === 'object' && 'statusCode' in error) { | |
| throw error | |
| } | |
| // Handle URL parsing errors | |
| throw createError({ | |
| statusCode: 400, | |
| statusMessage: 'Invalid referer URL', |
The referer header URL parsing can throw an uncaught error if the referer is malformed, causing an unhandled exception instead of a proper HTTP error response.
View Details
Analysis
Unhandled URL parsing error in Google Static Maps proxy referer validation
What fails: The google-static-maps-proxy.ts event handler crashes with an unhandled TypeError when the referer header contains a malformed URL.
How to reproduce:
# Send a request with a malformed referer header
curl -H "Referer: this-is-not-a-valid-url" http://localhost:3000/api/google-static-mapsResult: Returns 500 Internal Server Error due to unhandled exception from new URL() constructor throwing TypeError: Invalid URL
Expected: Should return 400 Bad Request with proper error message, consistent with other validation errors in the function that use createError() for HTTP error responses
Details: The referer header can contain any string value from the HTTP request. When new URL(referer) is called without try-catch wrapping (line 31), it throws a TypeError for malformed URLs. According to JavaScript best practices, the new URL() constructor should be wrapped in error handling when parsing untrusted input.
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🔗 Linked issue
Resolves #380, #83, #539, #540
Supersedes #516
❓ Type of change
📚 Description
Google Maps had several pain points: CORS issues with static map placeholders when using
crossOriginEmbedderPolicy, no way to switch map styles based on color mode, and MarkerClusterer types breaking builds when the package wasn't installed.Added a server-side static maps proxy that serves images from same origin (fixing CORS) with caching to reduce API costs. The proxy keeps the API key server-side only and validates referer headers to prevent abuse. Added
mapIdsprop to switch between light/dark Map IDs reactively when color mode changes. Replaced top-level type imports with inline types so MarkerClusterer is truly optional. Also fixed PinElement memory leak and importLibrary cache not retrying on failure.