# White Thumbnail Problem

**URL:** https://talk.observablehq.com/t/white-thumbnail-problem/1233
**Category:** Feedback
**Created:** [September 20, 2018, 7:09am UTC](https://talk.observablehq.com/t/white-thumbnail-problem/1233 "2018-09-20T07:09:56Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![tom](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/tom/32/2262_2.png) [@tom](https://talk.observablehq.com/u/tom)
#### Post date: [September 25, 2018, 6:11pm UTC](https://talk.observablehq.com/t/white-thumbnail-problem/1233/2 "2018-09-25T18:11:40Z")

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Hi David,

Yep - it’s the running time. Thumbnails are currently generated on a headless chrome instance with an execution limit of 30s. Given that this takes about 10s on my fancy MacBook, it’s likely taking a bit over 30s on the relatively smaller server instance.

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