Captcha wont display in browser

[fcasalderrey]

Hi,
After the first wrong login, the captcha wont display.
If i use chrome debug tool (F12) it shows this message: Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.
The captcha properties are both set: $config['recaptcha_publickey'] and $config['recaptcha_privatekey'].
Any ideas?
Thanks

[pbiering]

Could not establish connection. Receiving end does not exist.

sounds like your browser can't connect...potentially the URL for the CAPTCHA javascript library file is broken...ckeck page source and look for

<script src="https://www.google.com/recaptcha/api.js?..."></script>

it should reflect the configuration parameter configured in rcguard/config.inc.php

$rcmail_config['recaptcha_api_url'] = 'https://www.google.com/recaptcha/api.js';

[fcasalderrey]

Hi,
Thanks for your soon answer.
I check my $rcmail_config['recaptcha_api_url'] and its ok.
I think that the browser is blocking the URL, the exact message in the console log is: content.js:1 Unable to check top-level optout: Blocked a frame with origin "https://www.google.com" from accessing a cross-origin frame.
I am using captcha v3.

Thanks

[pbiering]

That is strange, at least here (roundcubemail 1.6.0) there is no frame tag in the HTML source code if the login page...can you check on your side? If so, what is the reason behind?

[fcasalderrey]

Tried with v2 and its works.
I have roundcube 1.6.0 (docker) and with captcha v3 could not make it work.

[pbiering]

can this be reproduced with latest release from here?

https://github.com/pbiering/roundcube-rcguard

If not, please close this issue.