Unfortunately, ReCaptchaNoCaptcha doesn't really work over the ConfirmEdit api. So, as long as the user (Flow) of the api doesn't implement some hacks to display the captcha correctly, it won't really work :(

There is nothing special about NS_MAIN in Flow.

You're right, it should respect the namespace limits.

Also, we recently made significant changes to how Flow uses the CAPTCHA for T140472: Flow: Update to stop using buildCssLinks and for related ConfirmEdit change. I am probably not going to have time to backport this, though.

For new topics, the title is the board/talk page, so the namespace would be NS_TALK if the board is e.g. Talk:Math. For actions on an existing topic, it is NS_TOPIC (maybe it should be the owner board, but if you want to workaround it for all Flow topics this should work for now).

I should have been more clear. wgCaptchaTriggersOnNamespace should work currently as long as you specify the right namespaces.

T140472: Flow: Update to stop using buildCssLinks and for related ConfirmEdit change affects how the CAPTCHA is rendered on the client and may affect the reCAPTCHA issue.

Hey,

I kept experimenting with $wgCaptchaTriggersOnNamespace but it still asks for captcha on the namespaces.

The code I am using is

$wgCaptchaTriggersOnNamespace[NS_TALK] = false;
$wgCaptchaTriggersOnNamespace[NS_TOPIC] = false

I have no idea what's going wrong here.

Change 306739 had a related patch set uploaded (by Mattflaschen):
extension.json: 1st dimension is namespace ID, so avoid re-numbering

https://gerrit.wikimedia.org/r/306739

See the docs: https://www.mediawiki.org/wiki/Extension:ConfirmEdit#Configuration . It is a two-dimensional array with both namespace and action.

You had it right the first time, except you also need to add NS_TOPIC (and any namespaces other than NS_TALK where boards live):

$wgCaptchaTriggersOnNamespace[NS_TALK]['edit'] = false;
$wgCaptchaTriggersOnNamespace[NS_TALK]['create'] = false;
$wgCaptchaTriggersOnNamespace[NS_TALK]['addurl'] = false;

$wgCaptchaTriggersOnNamespace[NS_TOPIC]['edit'] = false;
$wgCaptchaTriggersOnNamespace[NS_TOPIC]['create'] = false;
$wgCaptchaTriggersOnNamespace[NS_TOPIC]['addurl'] = false;

Make sure this is after both Flow and ConfirmEdit are included.

Also, I noticed a bug in ConfirmEdit, so you'll need that fix too.

Oh, sorry for that.

What's the bug about?

In T143516#2583782, @cristianbaldi wrote:

What's the bug about?

The change to use extension.json messed up the wgCaptchaTriggersOnNamespace config variable. It wasn't getting set to the correct indices.

Change 306739 merged by jenkins-bot:
extension.json: 1st dimension is namespace ID, so avoid re-numbering

https://gerrit.wikimedia.org/r/306739