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feat: Add experimental spa option for content scripts - #2623
creeperkatze wants to merge 11 commits into
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creeperkatze
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spa option for content scripts
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This also includes a small fix to The navigation API listened for navigate, which fires before the navigation commits, so I hit it because spa scripts ran main with a stale |
@wxt-dev/analytics
@wxt-dev/auto-icons
@wxt-dev/browser
@wxt-dev/i18n
@wxt-dev/is-background
@wxt-dev/module-react
@wxt-dev/module-solid
@wxt-dev/module-svelte
@wxt-dev/module-vue
@wxt-dev/runner
@wxt-dev/storage
@wxt-dev/unocss
@wxt-dev/webextension-polyfill
wxt
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #2623 +/- ##
==========================================
+ Coverage 79.52% 80.26% +0.73%
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Files 135 137 +2
Lines 4054 4140 +86
Branches 944 970 +26
==========================================
+ Hits 3224 3323 +99
+ Misses 734 726 -8
+ Partials 96 91 -5 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository UI Review profile: CHILL Plan: Advanced Run ID: 📒 Files selected for processing (5)
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Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughThis pull request adds experimental SPA content scripts. It registers them with origin-level match patterns, checks configured patterns at runtime, and runs ChangesSPA content-script support
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Browser
participant LocationWatcher
participant runSpaContentScript
participant ContentScriptContext
participant main
Browser->>LocationWatcher: Commit navigation URL
LocationWatcher->>runSpaContentScript: Report URL change
runSpaContentScript->>ContentScriptContext: Create or abort child context
runSpaContentScript->>main: Run for a matching page with a changed key
Merge Risk: ⚪ Minimal · up to The experimental SPA content-script option now rejects the configuration that would have leaked CSS onto non-matching pages of the origin. No concrete merge-blocking risk remains in the reviewed changes. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The feature is explicitly opt-in and preserves URL filtering before running the main handler. However, extension startup code loads on a broader set of pages, and cancellation of asynchronous handler effects still depends on callers honoring the context. No concrete privilege escalation or sensitive-data exposure was established. Retained concerns
Security review detailsSecurity Blast Radius
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✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 64.29% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 28 functions across 20 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
Review comments at @packages/wxt/src/core/utils/validation.ts:
- Around line 50-90: In the SPA validation block identified by
isSpaContentScript, emit a warning when cssInjectionMode is unset or set to
'manifest', directing users to 'ui' or 'manual' so CSS remains controllable by
the context lifecycle. Also document this limitation and the alternatives in the
content-scripts guide.
Review comments at @packages/wxt/src/utils/internal/location-watcher.ts:
- Around line 30-33: In the location watcher’s navigation event listener,
replace the `navigatesuccess` event with `currententrychange` so location
updates are dispatched as soon as the navigation entry commits, regardless of
intercept-handler completion or rejection.
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📒 Files selected for processing (22)
cspell.ymldocs/guide/essentials/content-scripts.mdpackages/wxt-demo/src/entrypoints/spa.content.tspackages/wxt-demo/wxt.config.tspackages/wxt/src/core/builders/vite/index.tspackages/wxt/src/core/resolve-config.tspackages/wxt/src/core/utils/__tests__/content-scripts.test.tspackages/wxt/src/core/utils/__tests__/manifest.test.tspackages/wxt/src/core/utils/__tests__/validation.test.tspackages/wxt/src/core/utils/building/internal-build.tspackages/wxt/src/core/utils/content-scripts.tspackages/wxt/src/core/utils/manifest.tspackages/wxt/src/core/utils/testing/fake-objects.tspackages/wxt/src/core/utils/validation.tspackages/wxt/src/core/utils/virtual-modules.tspackages/wxt/src/types.tspackages/wxt/src/utils/internal/__tests__/location-watcher.test.tspackages/wxt/src/utils/internal/__tests__/spa-content-script.test.tspackages/wxt/src/utils/internal/location-watcher.tspackages/wxt/src/utils/internal/spa-content-script.tspackages/wxt/src/virtual/content-script-isolated-world-spa-entrypoint.tspackages/wxt/src/virtual/virtual-module-globals.d.ts
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@creeperkatze this is a crucial change. Have you covered all the edge cases?! |
…katze/wxt into feat/spa-content-scripts
Head branch was pushed to by a user without write access
I think so. The tests cover the main navigation cases, and I tested it manually on sites like Youtube. The known limitations are in the docs, and it's behind an experimental flag for now. Anything specific you're worried about? |
…ripts # Conflicts: # packages/wxt/src/internal-utils/__tests__/content-script-utils.test.ts # packages/wxt/src/internal/builders/vite/index.ts # packages/wxt/src/internal/manifest.ts # packages/wxt/src/internal/validation.ts
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Overview
Adds an experimental
spa: trueoption for isolated world content scripts.WXT strips the path from
matchesin the manifest so the script registers against the origin, then re-checks the real patterns at runtime on every URL change.maingets a freshContentScriptContextper matching page, and the previous one is aborted before the next call and when navigating away.spa.keycontrols whenmainre-runs, defaulting to everything but the hash.Gated behind
experimental.spaContentScripts. SPA scripts build through their own virtual entrypoint, so other content scripts don't bundle the handler.Adapted from
define-spa-content-script.ts, with two differences: it recreates the child context between matching pages rather than re-runningmainon the live one, and per-browsermatchesresolve viaimport.meta.env.BROWSER.Also fixes
createLocationWatcher. The Navigation API branch listened fornavigate, which fires before the navigation commits, leavinglocation.hrefon the previous page. Switched tonavigatesuccess.Manual Testing
bun run --filter wxt test runbun run --filter wxt checkspa.content.tstowxt-demomatching*://*.youtube.com/watch*. home > video > other video > home callsmainonce per video with the correctlocation.hrefand aborts the previous context each time.Related Issue
Related to #1029