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enable eval() and new Function on startup#4142

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anonrig merged 1 commit intomainfrom
yagiz/add-eval-new-function
May 13, 2025
Merged

enable eval() and new Function on startup#4142
anonrig merged 1 commit intomainfrom
yagiz/add-eval-new-function

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@anonrig anonrig commented May 13, 2025 •
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Enables the usage of eval() and new Function() on startup phase of the main module. Potentially enabling libraries such as Fastify to be used within Cloudflare Workers.

Starting June 1st, 2025, the following code works:

strictEqual(eval('1+1'), 2);
// or even this
strictEqual((await import('module-that-has-eval-in-it)).default, 2);

export default {
  async fetch(request, env, ctx) {
    return new Response('Hello World!');
  },
};

@anonrig anonrig requested review from a team as code owners May 13, 2025 16:50
@hoodmane
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hoodmane commented May 13, 2025

This looks helpful.

kentonv
kentonv reviewed May 13, 2025
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danlapid
danlapid reviewed May 13, 2025
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@anonrig anonrig force-pushed the yagiz/add-eval-new-function branch 3 times, most recently from f01c747 to 5477109 Compare May 13, 2025 19:47
jasnell
jasnell reviewed May 13, 2025
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jasnell
jasnell reviewed May 13, 2025
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@anonrig anonrig force-pushed the yagiz/add-eval-new-function branch from 5477109 to e306775 Compare May 13, 2025 20:07
danlapid
danlapid reviewed May 13, 2025
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@anonrig anonrig force-pushed the yagiz/add-eval-new-function branch from e306775 to 575f7d3 Compare May 13, 2025 20:11
@anonrig anonrig requested a review from danlapid May 13, 2025 20:12
@anonrig anonrig force-pushed the yagiz/add-eval-new-function branch from 575f7d3 to 92862f4 Compare May 13, 2025 20:12
@anonrig anonrig requested review from jasnell and kentonv May 13, 2025 20:12
@anonrig anonrig changed the title enable eval() and new Function on bootstrap enable eval() and new Function on startup May 13, 2025
@anonrig anonrig force-pushed the yagiz/add-eval-new-function branch from 92862f4 to 6fc82d5 Compare May 13, 2025 20:18
@anonrig anonrig enabled auto-merge (squash) May 13, 2025 20:23
@anonrig anonrig disabled auto-merge May 13, 2025 21:01
@anonrig anonrig merged commit e7400af into main May 13, 2025
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@anonrig anonrig deleted the yagiz/add-eval-new-function branch May 13, 2025 21:08
@Manu1400 Manu1400 mentioned this pull request May 14, 2025
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@EdamAme-x EdamAme-x mentioned this pull request May 15, 2025
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This was referenced May 18, 2025
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@zhelezkov zhelezkov mentioned this pull request May 23, 2025
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@southpolesteve southpolesteve mentioned this pull request Nov 19, 2025
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@kentonv kentonv kentonv approved these changes

@danlapid danlapid Awaiting requested review from danlapid

@jasnell jasnell Awaiting requested review from jasnell

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5 participants

@anonrig @hoodmane @jasnell @kentonv @danlapid