What does this mean? ``` Unable to connect to existing session <uuid> (it may still be in use or not

What does this mean?

Unable to connect to existing session <uuid> (it may still be in use or not ready yet) - retry or launch a new browser: TargetCloseError: Protocol error (Browser.getVersion): Target closed

Unable to connect to existing session <uuid> (it may still be in use or not ready yet) - retry or launch a new browser: TargetCloseError: Protocol error (Browser.getVersion): Target closed

Unable to connect to existing session <uuid> (it may still be in use or not ready yet) - retry or launch a new browser: TargetCloseError: Protocol error (Browser.getVersion): Target closed

Unable to connect to existing session <uuid> (it may still be in use or not ready yet) - retry or launch a new browser: TargetCloseError: Protocol error (Browser.getVersion): Target closed

I'm seeing this periodically (and inconsistently) on browser launch.

Wwelz What does this mean? ``` Unable to connect to existing session <uuid> (it may st...

Kathy•12/4/25, 9:09 PM

from a quick perusal, we don't see that error in our logs. are you sure that's from us?

KKathy from a quick perusal, we don't see that error in our logs. are you sure that's f...

welzOP•12/5/25, 8:42 AM

It's definitely coming from Browser Rendering - the uuid also matches up with my BR logs. I'm invoking using

await puppeteer.launch(env.BROWSER)

await puppeteer.launch(env.BROWSER)

so it shouldn't even be trying to connect to an existing session.

TheCrazyBob•12/6/25, 8:30 PM

The

cacheTTL

cacheTTL

parameter doesn't seem to work. The request still gets cached, and I keep getting the same response even after waiting for a few minutes. Can someone look into this?

1984 Ford Laser•12/9/25, 1:14 AM

Im still having issues accessing the Browser Rendering REST API, every request returns a

Not Found.

Not Found.

response. I have Workers Paid and have tried both an Account API Token and User API Token with Edit access to the Browser Rendering perm. Any ideas to try?

11984 Ford Laser Im still having issues accessing the Browser Rendering REST API, every request r...

Kathy•12/9/25, 1:16 AM

dm me your account id please

KKathy dm me your account id please

1984 Ford Laser•12/9/25, 1:17 AM

Done

1984 Ford Laser•12/9/25, 1:23 AM

To add, I just set up a quick test Worker and the Worker Binding for this seems to work fine

Ray Li•12/15/25, 5:02 PM

Is browser rendering == CF container+ playwright?

What does this mean? ``` Unable to connect to existing session <uuid> (it may still be in use or not

Similar Threads

Similar Threads

Similar Threads