fix(compiler): avoid conflicts between HMR code and local symbols #61550
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Currently we construct the HMR replacement URL inline by calling into the native `URL` constructor. This can cause conflicts with user code that defines a symbol called `URL`. These changes resolve the issue by moving the URL construction into a separate function. This has a secondary benefit of making the generated code easier to follow and allowing us to update the URL without changing the compiled code. Fixes angular#61517.
crisbeto
commented
May 21, 2025
| expect(jsContents).toContain('function Cmp_HmrLoad(t) {'); | ||
| expect(jsContents).toContain( | ||
| 'import(/* @vite-ignore */\nnew URL("./@ng/component?c=" + id + "&t=" + encodeURIComponent(t), import.meta.url).href)', | ||
| 'import(/* @vite-ignore */\ni0.ɵɵgetReplaceMetadataURL(id, t, import.meta.url)', |
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We could've fixed the bug by changing this to new globalThis.URL as well, but I feel like the dedicated function gives us more flexibility anyways.
clydin
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May 21, 2025
thePunderWoman
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May 21, 2025
…1550) Currently we construct the HMR replacement URL inline by calling into the native `URL` constructor. This can cause conflicts with user code that defines a symbol called `URL`. These changes resolve the issue by moving the URL construction into a separate function. This has a secondary benefit of making the generated code easier to follow and allowing us to update the URL without changing the compiled code. Fixes #61517. PR Close #61550
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This PR was merged into the repository by commit 46af023. The changes were merged into the following branches: main, 19.2.x, 20.0.x |
thePunderWoman
pushed a commit
that referenced
this pull request
May 21, 2025
…1550) Currently we construct the HMR replacement URL inline by calling into the native `URL` constructor. This can cause conflicts with user code that defines a symbol called `URL`. These changes resolve the issue by moving the URL construction into a separate function. This has a secondary benefit of making the generated code easier to follow and allowing us to update the URL without changing the compiled code. Fixes #61517. PR Close #61550
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Currently we construct the HMR replacement URL inline by calling into the native
URLconstructor. This can cause conflicts with user code that defines a symbol calledURL.These changes resolve the issue by moving the URL construction into a separate function. This has a secondary benefit of making the generated code easier to follow and allowing us to update the URL without changing the compiled code.
Fixes #61517.