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The 2025 Developer Survey results are in. Explore insights into technology and tools, careers, community and more. View results.
0 votes
1 answer
44 views

Mismatch between Puppeteer remote object id and Chrome dev tools object Id

I'm trying to use Puppeteer to find elements on a page with a click handler. Doing this is not possible using Puppeteer directly, but Puppeteer exposes the Chrome Devtools Protocol which allows me to ...
Slicedpan's user avatar
  • 5,015
0 votes
0 answers
19 views

Puppeteer Core and Sparticuz stops at browser launch when deployed

When I deploy my Puppeteer core Node.js in serverless function, it doesn't work and works properly in local because I am using puppeteer base. "puppeteer-core": "^21.3.8" "@...
Jerome's user avatar
  • 23
0 votes
0 answers
24 views

Custom TTF Font not applying in Puppeteer PDF [closed]

I'm trying to generate a Bangla PDF using Puppeteer in a Next.js App Router project. I’m using a .ttf font (Nikosh.ttf) placed in public/fonts/. The generated PDF is always rendered with a fallback ...
Nur Mohmmad Apu's user avatar
0 votes
0 answers
37 views

Puppeteer launch fails with "req.on is not a function" in AWS ECS but works locally

Environment Puppeteer: ^24.14.0 Node-RED: latest (from nodered/node-red Docker image) Docker on Alpine Linux Works locally in Docker, fails in AWS ECS (both Fargate and EC2) Error TypeError: req.on is ...
pengwin's user avatar
  • 87
0 votes
1 answer
57 views

JS execution slower in built chromium binary compared to downloaded chromium binary

I am using puppeteer to run a bunch of JS to process HTML files in headless chromium. I noticed that when I use the Chromium binary downloaded from https://storage.googleapis.com/chromium-browser-...
vijayvenkatesans's user avatar
-1 votes
2 answers
45 views

Puppeteer can't access var doc in javascript

I am trying to scrape a web page using puppeteer, however, I can't access var doc with puppeteer. Although I can see it in the source page of my web browser var rows = []; var i = 1; /* while(i <= ...
M.M. CAN's user avatar
0 votes
0 answers
20 views

Dynamic State-wise Coloring in India Map using amCharts 5

I'm building an interactive India map using amCharts 5, where each state should be dynamically colored based on its purchase contribution percentage. The contribution data is coming from the backend, ...
MUKESH KASWAN's user avatar
1 vote
2 answers
54 views

Puppeteer Proxy Issue: ERR_INVALID_AUTH_CREDENTIALS on Specific Website

I've run into an issue while using Puppeteer with a proxy: On some websites, the proxy works without any problems. However, on others—such as csfloat.com—the connection fails, and Puppeteer crashes ...
UsAA12's user avatar
  • 87
0 votes
0 answers
57 views

CSS file causing Jest/Puppeteer test to time out

The test below is a contrived example intended to demonstrate the issue I'm encountering. I'm using Jest and Puppeteer to test a function called doSomething. The file containing the function (random....
Eric's user avatar
  • 1,653
0 votes
0 answers
52 views

Puppeteer scraper - bot detection

I have a scraper running on Puppeteer and Node.js. When I change the headless mode from false to true, the bot gets detected. I would like it to work with false since the deployment will be on Railway....
Juliaano's user avatar
0 votes
0 answers
80 views

A4 PDF not sizing correctly, producing border around pages

I am downloading a .pdf (A4) size using Puppeteer, however I am getting a light grey border around my pages. I have eliminated my .pdf HTML causing an issue by generating a blank A4 page and am still ...
David Henry's user avatar
  • 3,090
0 votes
1 answer
89 views

Puppeteer-extra, TimeoutError doesn't seem to exist

This is a followup question to this one, which resolves a missing definition of TimeoutError in my puppeteer code. Thing is, I want to use puppeteer-extra, and despite being a lightweight wrapper for ...
skiaddict1's user avatar
1 vote
2 answers
83 views

Puppeteer "TimeoutError is not defined"

I have a very simple web scraper app whose sole purpose is to evaluate the javascript on a webpage and return the generated HTML. It works fine most of the time. However, it is not handling timeouts ...
skiaddict1's user avatar
0 votes
2 answers
179 views

Puppeteer: Protocol error (Page.navigate): Invalid referrerPolicy

This has started happening recently and am struggling to work out why. The line: await page.GoToAsync(fromURL.ToString()); Throws the exception: MESSAGE: Protocol error (Page.navigate): Invalid ...
Tom Gullen's user avatar
  • 61.9k
2 votes
1 answer
100 views

Chromium can't run on in container Apple silicon with puppeteer in a DDEV environment

I have problem to activate Puppeteer in my MacOS environment (M1 processor). I get the following error message: /usr/local/lib/node_modules/pa11y-ci/node_modules/puppeteer/lib/cjs/puppeteer/node/...
m.orange's user avatar

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