CODEWITHSUNDEEP
google-chromejasminee2e-testingheadlesspuppeteer
Yoav Lahav
Yoav Lahav

Reputation: 77

how to debug puppeteer in headless mode

Does anyone knows how can i debug puppeteer while it runs headless? I have this E2E Jasmine test which runs fine under non headless mode , but as soon as i run headless , it fails. i'm trying to understand why it fails under headless mode (i'm suspecting it is related to a react render stuff) , but in order to get some common sense , i must use a debugger. P.S the documentation implies i should run non headless in order to see whats going on , but thats not helping in my case :/ Thanks in advance!

Upvotes: 4

Views: 3515

Answers (2)

browserless
browserless

Reputation: 2132

If you need some sort of visual debugging I run an OS project called browserless that has a built-in debugger. It allows you to (essentially) paste in puppeteer scripts and watch/interact with the output in the browser. It's a little nicer than trying to comb through DEBUG logs since it can be pretty noisy.

Upvotes: 0

Md. Abu Taher
Md. Abu Taher

Reputation: 18826

You can debug it easily with DEBUG.

Example command to run,

DEBUG=* node app.js

Upvotes: 3

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