this is the channel for browser rendering api. The community forums have a generic feedback category

A

Advany•4/10/24, 9:56 PM

Whats the timeline for expanding the limits for the amount of sessions allowed?

A

Advany•4/10/24, 9:57 PM

Anyway to request higher limits? Happy to pay!

CChaika this is the channel for browser rendering api. The community forums have a gener...

J

Jadugar_Jaggu•4/11/24, 3:53 AM

If I execute a Javascript function on a webpage using browser rendering and it will take too long to complete it so in this situation what will be the behaviour of a Cloudflare worker, like it will wait for the completion of that function which is been executed in browser session or it will simply kill itself due to some kind of timeout error or we can leave the browser session open and doing the work and leave the worker?

Sscythe If the browser does not receive a command every minute at least, it will shutdow...

J

Jadugar_Jaggu•4/11/24, 5:42 PM

interesting , it mean we can force a browser session to stay open as long as we want

D

dave•4/11/24, 8:49 PM

Did this become an open beta?

J

James•4/12/24, 1:35 AM

It’s now generally available to all workers paid plans

V

Vikash•4/12/24, 7:47 AM

Can I connect the same browser in multiple workers? I see the

getRandomSession

getRandomSession

function in the reuse browser example, which filter out the existing connected browser sessions using

connectionId

connectionId

const sessionsIds = sessions
            .filter(v => {
                return !v.connectionId; // remove sessions with workers connected to them
            })
            .map(v => {
                return v.sessionId;
            });

const sessionsIds = sessions
            .filter(v => {
                return !v.connectionId; // remove sessions with workers connected to them
            })
            .map(v => {
                return v.sessionId;
            });

const sessionsIds = sessions
            .filter(v => {
                return !v.connectionId; // remove sessions with workers connected to them
            })
            .map(v => {
                return v.sessionId;
            });

const sessionsIds = sessions
            .filter(v => {
                return !v.connectionId; // remove sessions with workers connected to them
            })
            .map(v => {
                return v.sessionId;
            });

But, in a worker I am just capturing a screenshot using

queue()

queue()

with single page and closes that immediately. So I should be able to re-use the browser in multiple worker as there might be 10-15 pages without any issue I guess in same browser. Or it's limited to single connection only and I will get error if I try to use a browser which is currently in use on any other worker?

Ssc Yes but no eta yet.

V

Vikash•4/15/24, 10:54 AM

I tried to use the reuse session example to capture screenshot for 100s of url, the

page.goto

page.goto

randomly freeze and worker stops processing any more URL from

queue()

queue()

or 15 minutes

V

Vikash•4/15/24, 10:55 AM

V

Vikash•4/15/24, 10:57 AM

even when I have timeout set explicitly in page.goto

const response = await page.goto(url, {
timeout: 15000,
waitUntil: "domcontentloaded",
});

Ssc Check that you're cleaning up resources, eg. closing pages etc. Random freezes s...

V

Vikash•4/15/24, 11:07 AM

The puppeteer has 30000 ms by default on launch, so is should timeout. instead the worker goes unresponsive for 15 minutes

Ssc Yes but no eta yet.

A

Advany•4/15/24, 2:11 PM

Any eta for:

Customizing session timeout (i saw a branche for that on github)
Getting more sessions?

Ssc Check that you're cleaning up resources, eg. closing pages etc. Random freezes s...

A

Advany•4/15/24, 2:34 PM

whats the method to check for memory usage?

J

Jadugar_Jaggu•4/16/24, 8:52 AM

I think browser.pages() is not able to detect how many pages are open in the current session. Is it a known bug?

J

Jadugar_Jaggu•4/16/24, 8:53 AM

I have one page which is running currently but when I am executing the browser.pages() on same session its returning me a empty array ( length 0 )

Ssc For 1. Should be in less than a month. For 2. No eta yet

A

Advany•4/16/24, 11:14 AM

awesome! 1 will help a lot!

J

Jadugar_Jaggu•4/16/24, 3:58 PM

we implemented a cron trigger in the worker which is using browser-rendering api to execute specific commands to ensure session continuity. However, as shown in the screenshot, the connection that started at 4:42:23 will end at 4:42:25. Just three seconds after the end, the browser closes at 4:42:28, citing idle as the reason.

According to the documentation,

A browser instance gets killed if it does not get any command for 60 seconds, freeing one instance.

A browser instance gets killed if it does not get any command for 60 seconds, freeing one instance.

B

Brian•4/16/24, 4:36 PM

Im testing the browserless api with the example screenshot worker. I cant get it to work when accessing a map tile url. It seems webgl is not supported by chromium. Has anyone been able to find a workaround for this? My hope is to use a browserless worker to make screenshots of maps for users.

BBrian Im testing the browserless api with the example screenshot worker. I cant get i...

J

Jadugar_Jaggu•4/16/24, 4:55 PM

may be you can try using Google maps lite mode

https://www.google.com/maps/?force=lite

https://www.google.com/maps/?force=lite

http://maps.google.com/?force=canvas

http://maps.google.com/?force=canvas

B

Brian•4/16/24, 5:06 PM

Thanks but I'm trying to grab a screenshot of my own tileservice that use maplibre to render vector tiles to the browser. Maplibre uses webgl and when I grab a screenshot of the url I get a white blank screenshot.
I saw others ask about using webgl in browserless workers and it seems it hasnt been solved yet.

M

Mercury•4/18/24, 9:27 AM

It gives me error

text: 'workers.api.error.no_access_to_browser_worker [code: 10088]'

text: 'workers.api.error.no_access_to_browser_worker [code: 10088]'

Is this still in Private Beta?

M

Mercury•4/18/24, 11:15 AM

Hi team, I am getting this on screenshot. Any idea how we can resolve this?

M

Mercury•4/18/24, 11:57 AM

Hi team, I am also not able to render canvas in Browser Rendering.

V

villainy•4/18/24, 8:24 PM

getting this error:

 ⨯ Error: Failed to load external module node:stream: TypeError: Native module not found: node:stream

 ⨯ Error: Failed to load external module node:stream: TypeError: Native module not found: node:stream

 ⨯ Error: Failed to load external module node:stream: TypeError: Native module not found: node:stream

 ⨯ Error: Failed to load external module node:stream: TypeError: Native module not found: node:stream

V

villainy•4/18/24, 8:24 PM

trying to use with nextjs

V

villainy•4/18/24, 8:25 PM

compatibility_flags = [ "nodejs_compat" ]
node_compat = true

compatibility_flags = [ "nodejs_compat" ]
node_compat = true

Vvillainy ``` compatibility_flags = [ "nodejs_compat" ] node_compat = true ```

C

ChaikaOP•4/18/24, 8:31 PM

you can't use both, one or the other

V

villainy•4/18/24, 8:32 PM

getting the same error regardless

V

villainy•4/18/24, 8:32 PM

this didnt help either

import { Stream } from "node:stream";
globalThis.Stream = Stream;

import { Stream } from "node:stream";
globalThis.Stream = Stream;

import { Stream } from "node:stream";
globalThis.Stream = Stream;

import { Stream } from "node:stream";
globalThis.Stream = Stream;

C

ChaikaOP•4/18/24, 8:33 PM

node:stream is only a thing in the compat flag version. I don't think that's the typical error though, "Native module not found"?
I would make sure you're on the latest cloudflare/puppeteer at least, the first versions used node_compat rather then the flag

V

villainy•4/18/24, 8:34 PM

on the latest version

    "@cloudflare/next-on-pages": "^1.11.0",
    "@cloudflare/puppeteer": "^0.0.6",

    "@cloudflare/next-on-pages": "^1.11.0",
    "@cloudflare/puppeteer": "^0.0.6",

V

villainy•4/18/24, 8:35 PM

node:

v20.10.0

V

villainy•4/18/24, 8:36 PM

maybe i need to downgrade to 18?

Vvillainy on the latest version ``` "@cloudflare/next-on-pages": "^1.11.0", "@clo...

C

ChaikaOP•4/18/24, 8:39 PM

hmm what exactly are you trying to do? I don't believe you can use the browser rendering binding in pages at all/not supported

V

villainy•4/18/24, 8:42 PM

Function that scrapes a website and use the data together with my api

V

villainy•4/18/24, 9:30 PM

what alternative do i have if it dosent work with pages?
create a dedicated worker api project , and then fetch it from my nextjs app?

J

James•4/18/24, 9:33 PM

browser rendering should work fine with

nodejs_compat

nodejs_compat

if you do a bit of monkey patching

J

James•4/18/24, 9:33 PM

I have this in a worker:

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

import puppeteer from '@cloudflare/puppeteer';

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

import puppeteer from '@cloudflare/puppeteer';

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

import puppeteer from '@cloudflare/puppeteer';

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

import puppeteer from '@cloudflare/puppeteer';

J

James•4/18/24, 9:33 PM

with

compatibility_flags = [ "nodejs_compat" ]

compatibility_flags = [ "nodejs_compat" ]

compatibility_flags = [ "nodejs_compat" ]

compatibility_flags = [ "nodejs_compat" ]

J

James•4/18/24, 9:34 PM

and it does work, so in theory it should work in Pages too

J

James•4/18/24, 9:36 PM

you won't be able to test locally though

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