# Failing to load resource on embedded notebook

**URL:** <https://talk.observablehq.com/t/failing-to-load-resource-on-embedded-notebook/1668>\
**Category:** Help\
**Created:** [February 11, 2019, 10:09pm UTC](https://talk.observablehq.com/t/failing-to-load-resource-on-embedded-notebook/1668 "2019-02-11T22:09:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jameswperakis](https://avatars.discourse-cdn.com/v4/letter/j/e480ec/32.png) [@jameswperakis](https://talk.observablehq.com/u/jameswperakis)\
**Post date:** [February 11, 2019, 10:09pm UTC](https://talk.observablehq.com/t/failing-to-load-resource-on-embedded-notebook/1668/1 "2019-02-11T22:09:47Z")

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I’m running an embedded notebook (using the [https://api.observablehq.com/etc](https://api.observablehq.com/etc). import method), and it works great on most of the computers I tested it on. However on some computers (curiously those sitting behind a university firewall), I get a strange error - “GET https ://unpkg.com/d3-array@1/package.json 500 notebook-runtime.js?module:805” and “GET https ://unpkg.com/d3-collection@1/package.json 500 notebook-runtime.js?module:805”

I’m using d3=require(“d3@5.9.1”), but I get the same (or more) errors when using just d3@5. I’m stuck. I don’t know why it would work on some computers but not others if they are running the same browser.

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**Author:** ![bgchen](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/bgchen/32/784_2.png) [@bgchen](https://talk.observablehq.com/u/bgchen)\
**Post date:** [February 11, 2019, 10:41pm UTC](https://talk.observablehq.com/t/failing-to-load-resource-on-embedded-notebook/1668/2 "2019-02-11T22:41:25Z")

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Is it possible that the firewall is blocking requests to [unpkg.com](http://unpkg.com)?

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**Author:** ![jameswperakis](https://avatars.discourse-cdn.com/v4/letter/j/e480ec/32.png) [@jameswperakis](https://talk.observablehq.com/u/jameswperakis)\
**Post date:** [February 11, 2019, 10:55pm UTC](https://talk.observablehq.com/t/failing-to-load-resource-on-embedded-notebook/1668/3 "2019-02-11T22:55:16Z")

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I think so. I actually just tried the import using bundle.run and it solved it. Thanks for the quick response though. Do you know if that’s a common issue with unpkg?

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<div class="post-metadata">

**Author:** ![bgchen](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/bgchen/32/784_2.png) [@bgchen](https://talk.observablehq.com/u/bgchen)\
**Post date:** [February 12, 2019, 12:23am UTC](https://talk.observablehq.com/t/failing-to-load-resource-on-embedded-notebook/1668/4 "2019-02-12T00:23:39Z")

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I’ve not run into it myself. You may want to ask your university’s network administrators.

Be careful that bundle.run and related services sometimes also go down: see [this thread](https://talk.observablehq.com/t/bundle-run-errors-breaking-notebooks/1050).