GoogleChrome / GoogleChrome/lighthouse

Pagespeed.web.dev becomes unresponsive when switching to Desktop tab

Open
#13,570 11 comments 0 reactions 0 assignees View on GitHub
bug needs-investigation needs-priority PSI/LR report
Dominant language
JavaScript
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Description

edit: 🔒 b/259930042

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### FAQ

- [X] Yes, my issue is not about [variability](https://github.com/GoogleChrome/lighthouse/blob/master/docs/variability.md) or [throttling](https://github.com/GoogleChrome/lighthouse/blob/master/docs/throttling.md).
- [X] Yes, my issue is not about a specific accessibility audit (file with [axe-core](https://github.com/dequelabs/axe-core) instead).

### URL

https://www.tokopedia.com/discovery/waktu-indonesia-belanja

### What happened?

Steps to Reproduce

1. Opened https://pagespeed.web.dev/report?url=https%3A%2F%2Fwww.tokopedia.com%2Fdiscovery%2Fwaktu-indonesia-belanja
2. Clicked on Mobile Tab and viewed the full report by scrolling to the bottom
3. Then click on the Desktop tab
4. The report showed only the Crux report, and below it, all is coming as blank
4. After some time, the page becomes unresponsive, with certain sections blank in the report.

![Screenshot 2022-01-15 at 2 23 22 PM](https://user-images.githubusercontent.com/6011865/149616478-9a27e823-a1ee-45a9-a806-46a96e41bf64.png)

![Screenshot 2022-01-15 at 2 23 35 PM](https://user-images.githubusercontent.com/6011865/149616497-c2994fc6-f69c-4b50-a474-b8cba88085d2.png)

https://user-images.githubusercontent.com/6011865/149616607-6c5c4129-57cf-4a3d-8c97-cebb22d918a7.mov

### What did you expect?

That it will display the who statistics if the page along with Diagnostics and Audits

### What have you tried?

I have tried on incognito in chrome but it seems to be having issues in both.
On other browsers i.e. Safari and Brave it's working fine

### How were you running Lighthouse?

PageSpeed Insights

### Lighthouse Version

9.0.0

### Chrome Version

Version 97.0.4692.71 (Official Build) (x86_64)

### Node Version

_No response_

### OS

Mac OS Monetery

### Relevant log output

_No response_

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the report at the provided PageSpeed Insights URL in Chrome, following the Mobile-to-Desktop tab-switching steps. Compare the report with Safari or Brave and inspect which sections become blank before the page becomes unresponsive. Done means the Desktop report consistently shows its statistics, Diagnostics, and Audits after switching tabs.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
performance, web-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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