Hey all! Trying to use the "browser-rendering" feature to get the text of a page - the docs demo it

Hey all! Trying to use the "browser-rendering" feature to get the text of a page - the docs demo it at https://developers.cloudflare.com/browser-rendering/get-started/reuse-sessions/

but when I call
```
response.text
```
response.text
```
response.text
```
response.text
myself (copy/pasting the code from the docs), I get an error saying
```
Buffer is not defined
```
Buffer is not defined
```
Buffer is not defined
```
Buffer is not defined
- deep inside the CF Pupeteer package:

`
✘ [ERROR] Uncaught (in promise) ReferenceError: Buffer is not defined

      at null.<anonymous>
  (file:///Users/josiahbryan/devel/rubber/cfworkers/browser-worker/node_modules/@cloudflare/puppeteer/src/common/HTTPResponse.ts:206:11)
```

Any suggestions on what I'm doing wrong...? Does

`
✘ [ERROR] Uncaught (in promise) ReferenceError: Buffer is not defined

      at null.<anonymous>
  (file:///Users/josiahbryan/devel/rubber/cfworkers/browser-worker/node_modules/@cloudflare/puppeteer/src/common/HTTPResponse.ts:206:11)
```

Any suggestions on what I'm doing wrong...? Does

`
✘ [ERROR] Uncaught (in promise) ReferenceError: Buffer is not defined

      at null.<anonymous>
  (file:///Users/josiahbryan/devel/rubber/cfworkers/browser-worker/node_modules/@cloudflare/puppeteer/src/common/HTTPResponse.ts:206:11)
```

Any suggestions on what I'm doing wrong...? Does

`
✘ [ERROR] Uncaught (in promise) ReferenceError: Buffer is not defined

      at null.<anonymous>
  (file:///Users/josiahbryan/devel/rubber/cfworkers/browser-worker/node_modules/@cloudflare/puppeteer/src/common/HTTPResponse.ts:206:11)
```

Any suggestions on what I'm doing wrong...? Does

response.text()` just NOT work?

Usage is like:

const response = await page.goto(url, { waitUntil: 'networkidle2' });
// ...
const text = await response.text(); // <~--- "Buffer is not defined" error thrown here

const response = await page.goto(url, { waitUntil: 'networkidle2' });
// ...
const text = await response.text(); // <~--- "Buffer is not defined" error thrown here

const response = await page.goto(url, { waitUntil: 'networkidle2' });
// ...
const text = await response.text(); // <~--- "Buffer is not defined" error thrown here

const response = await page.goto(url, { waitUntil: 'networkidle2' });
// ...
const text = await response.text(); // <~--- "Buffer is not defined" error thrown here

JJosiah Bryan Hey all! Trying to use the "browser-rendering" feature to get the text of a page...

Unsmart•4/24/24, 1:17 AM

Did you add the nodejs_compatnodejs_compat flag from step 3: https://developers.cloudflare.com/browser-rendering/get-started/reuse-sessions/#3-configure-wranglertoml

UUnsmart Did you add the `nodejs_compat` flag from step 3: <https://developers.cloudflare...

Josiah BryanOP•4/24/24, 1:27 AM

Indeed indeed - very first thing I did - followed it step-by-step - this is my wrangler.toml for this problem

UUnsmart Did you add the `nodejs_compat` flag from step 3: <https://developers.cloudflare...

Josiah BryanOP•4/24/24, 1:28 AM

Do I need to monkey-patch globalThis.bufferglobalThis.buffer as done above? Like:

import { Buffer } from 'node:buffer';
globalThis.Buffer = Buffer;

import { Buffer } from 'node:buffer';
globalThis.Buffer = Buffer;

Unsmart•4/24/24, 1:49 AM

Not really sure never used browser rendering, not having the compat flag seemed like the obvious culprit from the error message

Josiah BryanOP•4/24/24, 2:31 AM

Yep - seems obvious, but the RENDERING works fine! Screenshot is gucci and nice. it's the ".text()" thing that is the problem

Stingo•4/24/24, 9:27 AM

I d like to request test for browser rendering API Before paying .

Ddpeek I had the clever idea of using DurableObject location hints to get browser rende...

Hello, I’m Allie!•4/24/24, 9:44 AM

Can you share an example of how you are doing it?

Ddpeek I figured if the browser was requested from a DO in the right region it might al...

Hello, I’m Allie!•4/24/24, 10:07 AM

Which region are you using?

Hello, I’m Allie!•4/24/24, 10:07 AM

Actually, you can check too what colo your DO ended up in

Hello, I’m Allie!•4/24/24, 10:08 AM

Return this from your DO somehow

((
  await (await fetch("https://www.cloudflare.com/cdn-cgi/trace")).text()
).match(/^colo=(.+)/m) as string[])[1]

((
  await (await fetch("https://www.cloudflare.com/cdn-cgi/trace")).text()
).match(/^colo=(.+)/m) as string[])[1]

Hello, I’m Allie!•4/24/24, 10:08 AM

It will tell you which colo the DO is in

Ssc Setting the geographical location of the browser is in the roadmap. With DO hint...

Hello, I’m Allie!•4/24/24, 10:16 AM

Do the browsers utilize IPs geolocated to the same region as where they spawn?

Stingo•4/24/24, 10:20 AM

Is there a way to request more browser instances per minute ? or the limit for all plans is 2

0xPresc•4/25/24, 9:23 PM

Hi, how to get access to browser rendering?

JJames I've filed https://github.com/cloudflare/puppeteer/issues/36 but it would be rea...

James•4/26/24, 11:44 AM

Any insight or commitment here?

00xPresc Hi, how to get access to browser rendering?

Stingo•4/27/24, 10:59 AM

workers paid plan

SStingo workers paid plan

Friendly•4/27/24, 6:54 PM

a paid plan immediatly unlock access?

FFriendly a paid plan immediatly unlock access?

Stingo•4/27/24, 6:54 PM

yup

Stingo•4/27/24, 6:54 PM

i dont think its worth it

Stingo•4/27/24, 6:54 PM

check limits

Stingo•4/27/24, 6:54 PM

2 browsers per min

Friendly•4/27/24, 6:55 PM

mmm that does indeed sound extremely limited

FFriendly mmm that does indeed sound extremely limited

Stingo•4/27/24, 6:56 PM

i asked them for a api trial before buying , they dont seem to like it

FFriendly mmm that does indeed sound extremely limited

Stingo•4/27/24, 6:57 PM

Friendly•4/27/24, 6:58 PM

maybe a browser instance can be keep active and perform multiple action in the same minute ( i personally need to take page screenshots)

Friendly•4/27/24, 6:59 PM

so the 2 new browser per minutes is not an issue, but i have not enough experience with workers to tell if that's the case

FFriendly maybe a browser instance can be keep active and perform multiple action in the s...

Stingo•4/27/24, 7:00 PM

well for my use case needed anonymity , need to change browser fingerprint , that can be only be done with reopening browser .

FFriendly so the 2 new browser per minutes is not an issue, but i have not enough experien...

Stingo•4/27/24, 7:01 PM

you dont want to deal with cdp remote debugging , it uses websockets and so pain in the ass

Vikash•4/29/24, 8:37 AM

If end time, closed reason is empty...Does that mean the browser still running? If yes, I thought there was a maximum 2 browser limit per account. So, how I can see 10-15 browser are running as I don't see Close reasonClose reason on many on dashboard.

SS0ns0fAnarchy I have this problem too, also I can't connect to these browsers with: puppeteer....

Vikash•4/29/24, 9:35 AM

Sounds like Cloudflare team needs to address this, let's wait for the morning if someone comment here from CF.

Ssc There is a bug on our end where sometimes a browser doesnt register as closed ev...

Vikash•4/29/24, 9:57 AM

Thanks for update.

Ssavokiss Hi guys, Does the puppeteer on Cloudflare supports this plugin puppeteer-extra-p...

Stingo•4/29/24, 6:28 PM

have you got any answers ?

SStingo have you got any answers ?

Advany•4/29/24, 7:28 PM

Extra wont work. As it extends puppeteer just like cf does. One would need to modify it for cf

AAdvany Extra wont work. As it extends puppeteer just like cf does. One would need to mo...

Stingo•4/29/24, 8:24 PM

Forking time

Ssc For those that might be interested, we've added a `keep_alive` option in the lat...

Stingo•5/3/24, 7:41 PM

Browser Rendering Test Feature for Free workers when

SStingo Browser Rendering Test Feature for Free workers when

Mrinank•5/3/24, 9:05 PM

Original message was deleted

Josiah BryanOP•5/4/24, 10:30 PM

Nope, never got any support from anyone. Actually implemented my own puppeteer worker inside my kubernetes cluster and I've used it successfully thousands of times since I posted this. It was a waste of time to try the browser. Rendering in cloudflare, wasted an entire day of my developer time. Especially since nobody could support the bugs that were there.

jason•5/5/24, 3:42 PM

Cloudflare's Pupeteer Browser Rendering worker example does not show sticky navs for some reason--both for my website and others I've tried like Shadcn's site.

Any ideas how to make the sticky nav visible in the screenshot, like it is when visiting the website in a regular brower?

I've tried every setting I can think of, delays, etc. My code is based on the basic example: https://developers.cloudflare.com/browser-rendering/get-started/screenshots/

jmonster•5/6/24, 10:05 PM

Hi, I am hoping to get access to the Puppeteer Browser Rendering for some personal use case (dynamic resume.pdf generation) on my personal site.

Hey all! Trying to use the "browser-rendering" feature to get the text of a page - the docs demo it

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