"Could not find module in path" error even though installed

[gragland]

🐛 bug report

Description of the problem

I have the npm module analytics installed but I'm seeing the following error in a new React CodeSandbox.

Could not find module in path: 'analytics' relative to '/src/index.js'

The only code I've added to the default React CodeSandbox is this in src/index.js:

import Analytics from 'analytics';

Link to sandbox: https://codesandbox.io/s/gracious-thompson-8730t

Your Environment

Software	Name/Version
Сodesandbox	PROD-1565017826-4f295f72c
Browser	Chrome 76
Operating System	macOS 10.13.6

[lbogdan]

Hey @gragland ,

It seems to work fine here:

[gragland]

Oh, weird, working for me now as well. Will close this and re-open if I see the issue again.

[gragland]

Okay seeing this issue again and have error details:

Uncaught (in promise) TypeError: Failed to fetch
sandbox.9b5dc6d7.js:1 GET https://cdn.jsdelivr.net/npm/analytics@0.1.16/lib/analytics.browser.cjs.js net::ERR_FAILED

It's currently not working in this sandbox: https://codesandbox.io/s/4pe06 but is working in the original sandbox I posted.

[gragland]

@lbogdan Is there any other info I can provide on this? I'm currently using this analytics library in the code that divjoy.com exports to CodeSandbox and seeing a lot of users export broken projects to CodeSandbox. Wondering if there's an issues somehow with the analytics lib (although not sure that would make sense given it seems to be an intermittent problem) or if it relates to CodeSandbox or cdn.jsdelivr.net. Happy to provide any info if it's still not happening on your end with https://codesandbox.io/s/4pe06

[gragland]

Okay figured out the culprit with the help of @DavidWells. uBlock Origin was blocking the script from being loaded from unpkg, even with it set to "allow all scripts" (presumably because it's loaded from the csb.app domain). Guess it doesn't like anything with the term "analytics" in the path. @lbogdan Not sure if there's an elegant fix on the CodeSandbox side for handling package names that might be blocked by ad blockers. Maybe a CDN path that doesn't have the package name in the url? Maybe you have an idea.