Support sourcemaps in DevTools #3140
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🦋 Changeset detectedLatest commit: 38f5346 The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
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A wrangler prerelease is available for testing. You can install this latest build in your project with: npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/4896386811/npm-package-wrangler-3140You can reference the automatically updated head of this PR with: npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/3140/npm-package-wrangler-3140Or you can use npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/4896386811/npm-package-wrangler-3140 dev path/to/script.jsAdditional artifacts:npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/4896386811/npm-package-cloudflare-pages-shared-3140Note that these links will no longer work once the GitHub Actions artifact expires. |
Codecov Report
@@ Coverage Diff @@
## main #3140 +/- ##
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- Coverage 74.84% 74.63% -0.21%
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Files 179 179
Lines 10858 10899 +41
Branches 2880 2894 +14
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+ Hits 8127 8135 +8
- Misses 2731 2764 +33
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mrbbot
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JacobMGEvans
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mrbbot
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What this PR solves / how to test:
This PR enables support for sourcemaps in DevTools when using Wrangler.
It works by intercepting CDP messages from the DevTools frontend and responding in Wrangler. In particular:
Network.loadNetworkResponseis intercepted to provide DevTools with the right sourcemapDebugger.scriptParsedis intercepted afterworkerdin order to give schemes to URLs returned fromworkerd(which allows DevTools to treat modules as file paths with folders)Two additional DevTools patches are also included. 14 is a more-compliant ping implementation (thanks @mrbbot!) and 15 integrates with the Wrangler changes to enable sourcemaps, and enables some additional DevTools features to improve the experience of the Sources panel.
To test, run this branch build of Wrangler against a worker (
wrangler devorwrangler dev --experimental-local), and open up DevTools by pressing D. Replace the DevTools domain with the preview build of DevTools from this PR (currently https://ca712237.cloudflare-devtools.pages.dev/).Author has included the following, where applicable:
[ ] CI Testsworker-appwithwrangler devandwrangler dev --experimental-localno-bundle-importwithwrangler dev --no-bundleandwrangler dev --experimental-local --no-bundlesites-appwithwrangler devandwrangler dev --experimental-localReviewer has performed the following, where applicable: