Browser Steps gives "Response object is not subscriptable" when theres a configuration error - improve error handling

[dgtlmoon]

Discussed in #1813

^{Originally posted by FhenrisGit September 25, 2023}
Describe the bug
If I try to use Browser Steps, It doesn't work and I have a popup :
'Response" object is not subscriptable

Version
0.45.2

To Reproduce

Steps to reproduce the behavior:

1. Go to Browser Steps
2. Click on "click here to start"
3. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Desktop (please complete the following information):

• Windows 10
• Chrome
• Version 116.0.5845.188

Smartphone (please complete the following information):

• No

Additional context
Docker install on TrueNas Scale, using browserless-chrome

[dgtlmoon]

             if step_operation == 'Goto site':
+              #  if browsersteps_sessions[browsersteps_session_id] != 200:
+              #      return make_response("Browser Steps failed to connect to Playwright correctly.\n\n"+browsersteps_sessions[browsersteps_session_id].data.decode('utf8'), 401)
+

something like this, the problem is when browser steps cant connect to playwright, it doesnt cleanly report the situation/exception (cant resolve hostname, etc)

[dgtlmoon]

        try:
            browsersteps_start_session['browser'] = io_interface_context.chromium.connect_over_cdp(
                os.getenv('PLAYWRIGHT_DRIVER_URL', '') + keepalive)
        except Exception as e:
            if 'ECONNREFUSED' in str(e):
                return make_response('Unable to start the Playwright Browser session, is it running?', 401)
            else:
                return make_response(str(e), 401)

probably this stuff is not catching

[techc0de]

Hi,

I got the same error with the version v0.45.5.
How do I fix it?

[techc0de]

I'm trying to use v0.45.4 by cleared the cache, but encountered the same issue!

[techc0de]

With the current v0.45.7.3, this error is persist.
New error occurred:

page closed =========================== logs =========================== navigating to "https://portal.website.com/login", waiting until "load" ============================================================

[dgtlmoon]

network error?

[techc0de]

I don't think so.
With trial and error, I was able to find a working version: v0.45.3.
By the way, the URL is password-protected.

[dgtlmoon]

This discussion is about the error message "Response object is not subscriptable"

please dont cross-contaminate the comments on threads, its best to start a new discussion

title: Browser Steps gives "Response object is not subscriptable" when theres a configuration error - improve error handling

[techc0de]

With the latest version, It still giving the same error along with the new error.

[Adrianni]

I am experiencing the same error. Freshly pulled from project

[sph3rex]

This is probably because of some updates in browserless/chrome. For me it works locally (with some minor issues that I'm not sure are related) like this:

• latest version of changedetection.io via docker and with env -e PLAYWRIGHT_DRIVER_URL="ws://browserless:3000/" where browserless is the ip or host of your browserless chrome
• using latest version of browserless/chrome

[techc0de]

I'm using this env: PLAYWRIGHT_DRIVER_URL=ws://playwright-chrome:3000/?stealth=1&--disable-web-security=true

[mrnoisytiger]

Also having this issue using the same environmental variable as @techc0de.

Running the latest docker container on both ends (ChangeDetection and Playwright) as of today.

[dgtlmoon]

Its often because the network (your container, container hostname of the chrome browser etc) is configured wrong