process is not defined in dev mode - @sentry/sveltekit

[dann2g]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/browser

SDK Version

7.56.0

Framework Version

1.5.0

Link to Sentry event

No response

SDK Setup

N/A

Steps to Reproduce

Install @sentry/sveltekit as a node dependency

Run start SvelteKit in dev mode with npm run dev

Error in console:

ReferenceError: process is not defined
    at <stdin> (util.js?v=25e5feed:86:5)
    at __require (util.js?v=25e5feed:3:50)
    at util.js?v=25e5feed:572:16

No other code required

Expected Result

SvelteKit dev mode works normally (no errors)

Actual Result

JavaScript on page is broken due to the following error:

ReferenceError: process is not defined
    at <stdin> (util.js?v=25e5feed:86:5)
    at __require (util.js?v=25e5feed:3:50)
    at util.js?v=25e5feed:572:16

For some reason the @sentry/sveltekit package is getting bundled into the client side code and in utils.js (from the above error) is trying to access process.env.NODE_DEBUG.

This doesn't happen in the production built version.

[Lms24]

Hi @dann2g thanks for writing in!

On first glance, this looks like something went wrong during installation. Node code should not end up in your browser JS bundles.
Did you by chance install @sentry/sveltekit as a devDependency? It needs to be installed as a dependency.
Did you follow the guide (wizard or manual setup) for setting up the SDK?

Just as a sanity check, I added the SDK to a fresh SvelteKit app and running dev mode works fine for me.

[dann2g]

@Lms24 You're right. We found the culprit, it was due to the @originjs/vite-plugin-commonjs plugin. Weirdly, this was only reproducible when:

• @sentry/sveltekit was installed as a dependency (no setup)
• @originjs/vite-plugin-commonjs was installed as a plugin
• certain packages (e.g. lodash-es) were imported into .svelte files

Not a Sentry issue so this can be closed. Thank you for your help.