Hey Community,
I’m comparing Sentry and Monti at the moment for Client Logging and I want to add sourcemapping for better error logs. It seems that the standart-minifier package of meteor does not provide sourcemapping and the docs of monti suggesting zodern-standart-minifier which got no updates now for a while. Which minifier do you use to provide sourcemapping?
1 Like
zodern
April 1, 2025, 3:12pm
2
zodern:standard-minifier-js is still maintained. There hasn’t been much need to update it.
4 Likes
Thanks for your response. I’m testing the zodern-standart-minifier together now with hide-production-sourcemaps. So far my builds fail with:
/build/.meteor/packages/zodern_standard-minifier-js/.5.3.1.nka808eq0i++os+web.browser+web.browser.legacy+web.cordova/plugin.fastMinifier.os/npm/node_modules/meteor/fastMinifier/node_modules/meteor-package-install-swc/.swc/node_modules/@swc/core/index.js:110:29:
#16 202.8 x 'import.meta' cannot be used outside of module code.
Am I missing some config which is now needed?
A team member had also some attempts on this few months ago
opened 06:09PM - 14 Oct 24 UTC
I get a build error when upgrading to meteor 3.0.3 with minifier version 5.3.1. … It did not happen with meteor 2.10.0 on the same version and there is also no error when using the [default minifier](https://packosphere.com/meteor/standard-minifier-js) and meteor 3.0.3.
<details>
<summary>Error message</summary>
```
While minifying app code:
/Users/kaifritsch/.meteor/packages/zodern_standard-minifier-js/.5.3.1.13xodu.yv0c3++os+web.browser+web.browser.legacy+web.cordova/plugin.fastMinifier.os/npm/node_modules/meteor/fastMinifier/node_modules/meteor-package-install-swc/.swc/node_modules/@swc/core/index.js:110:29:
× 'import.meta' cannot be used outside of module
code.
╭─[567:1]
567 │ if (typeof WorkerGlobalScope < "u" && self instanceof
WorkerGlobalScope) {
568 │ if (typeof o != "string")
569 │ throw Error("corePath should be a string!");
570 │ const y = new URL(o, import.meta.url).href, m = await
W(
· ───────────
571 │ y,
572 │ "application/javascript"
573 │ ), v = await W(
╰────
× 'import.meta' cannot be used outside of module
code.
╭─[595:1]
595 │ }
596 │ if (typeof o != "string")
597 │ throw Error("corePath should be a string!");
598 │ const p = new URL(o, import.meta.url).href, c = await
W(
· ───────────
599 │ p,
600 │ "application/javascript"
601 │ ), l = await W(
╰────
× 'import.meta' cannot be used outside of module
code.
╭─[632:1]
632 │ }, p.readAsArrayBuffer(o);
633 │ }), Re = async (o) => {
634 │ let f = o;
635 │ return typeof o > "u" ? new Uint8Array() : (typeof o ==
"string" ? /data:_data\/([a-zA-Z]*);base64,([^"]*)/.test(o) ? f =
atob(o.split(",")[1]).split("").map((s) => s.charCodeAt(0)) : f = await
(await fetch(new URL(o, import.meta.url).href)).arrayBuffer() : (o
instanceof File || o instanceof Blob) && (f = await Te(o)), new
Uint8Array(f));
·
───────────
636 │ }, Ae = /* @__PURE__ */ Object.freeze(/* @__PURE__ */
Object.defineProperty({
637 │ __proto__: null,
638 │ defaultOptions: Se,
╰────
Caused by:
0: failed to parse input file
1: Syntax Error while minifying
dynamic/node_modules/react-audio-voice-recorder/dist/index-1c988149.js
at Compiler.minifySync
(/Users/kaifritsch/.meteor/packages/zodern_standard-minifier-js/.5.3.1.13xodu.yv0c3++os+web.browser+web.browser.legacy+web.cordova/plugin.fastMinifier.os/npm/node_modules/meteor/fastMinifier/node_modules/meteor-package-install-swc/.swc/node_modules/@swc/core/index.js:110:29)
at Object.minifySync
(/Users/kaifritsch/.meteor/packages/zodern_standard-minifier-js/.5.3.1.13xodu.yv0c3++os+web.browser+web.browser.legacy+web.cordova/plugin.fastMinifier.os/npm/node_modules/meteor/fastMinifier/node_modules/meteor-package-install-swc/.swc/node_modules/@swc/core/index.js:373:21)
at MeteorBabelMinifier._minifyWithSwc
(packages/fastMinifier_plugin.js:72:16)
at MeteorBabelMinifier.minifyOneFile
(packages/fastMinifier_plugin.js:121:19)
at packages/zodern_caching-minifier.js:77:23
at Function.Profile.time (packages/zodern_caching-minifier.js:34:5)
at MeteorBabelMinifier.minifyFile
(packages/zodern_caching-minifier.js:76:15)
at packages/fastMinifier_plugin.js:183:27
at Function.Profile.time (packages/fastMinifier_plugin.js:35:7)
at packages/fastMinifier_plugin.js:182:17
at Array.forEach (<anonymous>)
at MeteorBabelMinifier.<anonymous> (packages/fastMinifier_plugin.js:163:9)
at MeteorBabelMinifier.processFilesForBundle
(packages/fastMinifier_plugin.js:31:21)
=> Your application has errors. Waiting for file change.
```
</details>
The reason seems to be a reference to `import.meta` in the package [ffmpeg](https://www.npmjs.com/package/@ffmpeg/ffmpeg), which is [dynamically imported](https://github.com/samhirtarif/react-audio-recorder/blob/1c5298cf29aaf9cd6415180a37ee14ca36ccba70/src/components/AudioRecordingComponent.tsx#L72) by the package [react-audio-voice-recorder](https://www.npmjs.com/package/react-audio-voice-recorder)
Its reproducible in a base meteor react app, with just react-audio-voice-recorder installed and imported. You mentioned on a [meteor ticket](https://github.com/meteor/meteor/issues/12324) that "Meteor has never supported import.meta", but since it is working in meteor 2.10 and also in 3.0.3 with the standard minifier, I thought it might be fixable in this case.