refactor(plugin-legacy): improve default polyfill#8312
Merged
patak-cat merged 3 commits intovitejs:mainfrom Jun 1, 2022
Merged
refactor(plugin-legacy): improve default polyfill#8312patak-cat merged 3 commits intovitejs:mainfrom
patak-cat merged 3 commits intovitejs:mainfrom
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This will dedupe imports and debug output. (does not affect output though)
sapphi-red
added
plugin: legacy
p2-nice-to-have
sapphi-red
commented
May 24, 2022
Comment on lines
+146
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+152
| // check if the target needs Promise polyfill because SystemJS relies on it | ||
| // https://github.com/systemjs/systemjs#ie11-support | ||
| await detectPolyfills( | ||
| `Promise.resolve(); Promise.all();`, | ||
| targets, | ||
| legacyPolyfills | ||
| ) |
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Polyfills other than core-js/modules/es.promise may be added for Promise.resolve/Promise.all so the if condition is not correct.
| // check if the target needs Promise polyfill because SystemJS relies on it | ||
| // https://github.com/systemjs/systemjs#ie11-support | ||
| await detectPolyfills( | ||
| `Promise.resolve(); Promise.all();`, |
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Adding Promise.all() makes legacyPolyfills to include core-js/modules/es.array.iterator.js.
sapphi-red
changed the title
patak-cat
approved these changes
Jun 1, 2022
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Description
This PR fixes the following things.
[@vitejs/plugin-legacy] legacy polyfills:output (indirectly): polyfills-legacy.js throw error: Cannot assign to read only property 'prototype' of function #8287 (comment)I tested this with create-vite (vanilla-js) with IE 11.
Additional context
What is the purpose of this pull request?
Before submitting the PR, please make sure you do the following
fixes #123).