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Comments (5)

pcboy avatar pcboy commented on May 11, 2024

I just noticed something. The screenshot feature is not the problem. It looks like the whole thing is not working properly, I can't control the browser at all. If I do 2 calls to goto in a row, only the first one works, then I get the "Browser is dead" error.

Code:

browser = Ferrum::Browser.new(logger: STDERR)
browser.goto("https://github.com")
browser.goto("https://www.google.com")

Logs:

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▶ 12.00082179500896 {"method":"Page.navigate","params":{"url":"https://www.google.com"},"id":1010}
Traceback (most recent call last):
        4: from tamanager.rb:7:in `<main>'
        3: from /home/pi/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/forwardable.rb:230:in `goto'
        2: from /home/pi/.rvm/gems/ruby-2.6.3/gems/ferrum-0.5/lib/ferrum/page.rb:66:in `goto'
        1: from /home/pi/.rvm/gems/ruby-2.6.3/gems/ferrum-0.5/lib/ferrum/page.rb:110:in `command'
/home/pi/.rvm/gems/ruby-2.6.3/gems/ferrum-0.5/lib/ferrum/browser/client.rb:41:in `command': Browser is dead (Ferrum::DeadBrowserError)

from ferrum.

route avatar route commented on May 11, 2024

Sorry I don't have raspberry for a test but are you sure you have enough memory?

from ferrum.

pcboy avatar pcboy commented on May 11, 2024

I checked the available RAM and that doesn't seem to be a memory issue.
As mentionned it's not only happening for screenshots but any interaction. I can't do more than one goto() for instance.

https://github.com/route/ferrum/blob/1ab9c566c29dc417d95a92a50579ecad1224de8f/lib/ferrum/browser/client.rb#L41

This is where it fails.

I checked and noticed that data is nil and @ws.messages.closed? returns true too. And @pendings equals {}.
Any idea why this situation happens?

from ferrum.

route avatar route commented on May 11, 2024

You don't need chrome driver BTW, only chrome. I could also try to use the latest Chrome if possible.
As for why this is happening, for some reason when you issue subsequent Page.navigate we send it to chrome and start waiting for response if nothing returned then data is nil and we check if for some reason message queue is closed which can happen only when socket is closed in case of error or when chrome dies. Try to set timeout to a higher value, it's 5 by default, try to use latest chrome, and check if chrome process really dead while setting timeout to a higher value. That's all clues so far :)

from ferrum.

route avatar route commented on May 11, 2024

I'm gonna close issue for now, let me know if anything from the things I had mentioned above helped.

from ferrum.

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