cloudfour / cloudfour/lighthouse-parade

Returns -1 sometimes

Open
#62 2 comments 0 reactions 0 assignees View on GitHub
Dominant language
TypeScript
Stars
373
Forks
15
Avg merge
13h 36m
Merged PRs (30d)
34

Description

Thanks for great tool!

I ran into a problem during testing. Normalized score is `-1` sometimes.

For example Overall Score and LCP here:

![image](https://user-images.githubusercontent.com/16641/101981233-9e4dd400-3c6b-11eb-8736-c4bda231f175.png)

PageSpeed Insights works well for this URL: https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fwww.vzhurudolu.cz%2Famp (As I know this is different Lighthouse setup.)

Maybe there should be option for returning Lighthouse JSON output to have possibility to debug issues like this.

[https--www_vzhurudolu_cz-amp.csv.zip](https://github.com/cloudfour/lighthouse-parade/files/5682869/https--www_vzhurudolu_cz-amp.csv.zip)

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the reported -1 normalized scores for Overall Score and LCP with the linked URL and attached CSV. Trace how this TypeScript Node.js CLI handles Lighthouse results, then define done as explaining the discrepancy and adding a verified fix or a clearly scoped debugging-output change.

Written by the indexing model from the issue text.

Assessment

Tech stack
node.js, typescript
Domain
cli, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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