mcaptcha usage creates javascript error

[CaveManon]

Description

When enabling mCaptcha on a site and going to the registration page, the following Javascript error appears
JavaScript promise rejection: r.default is not a function. Open browser console to see more details.

The console points to the following line of code as the problem area:

      // @ts-expect-error
      mCaptcha.default({
        siteKey: {
          instanceUrl: new URL(instanceURL),
          key: siteKey,
        },
      });

with the error being caught (in promise) TypeError: r.default is not a function

Relevant part of app.ini here:

ENABLE_CAPTCHA = true
MCAPTCHA_SITEKEY = ***
MCAPTCHA_SECRET =  ***
CAPTCHA_TYPE = mcaptcha
MCAPTCHA_URL= https:// ***/widget/?sitekey=***

Gitea Version

1.23.3

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

Not relevant; issue is in Web UI.

Screenshots

Git Version

git version 2.39.5

Operating System

Debian 6.1.124-1

How are you running Gitea?

Downloading .deb package using apt from https://packaging.gitlab.io/gitea

Database

PostgreSQL

[wxiaoguang]

-> Fix mCaptcha bug #33659

[wxiaoguang]

There will be a backport fix for 1.23

[wxiaoguang]

The 1.23 nightly (which is a stable release and will be 1.23.5) is ready

• https://dl.gitea.com/gitea/1.23-nightly/
• https://hub.docker.com/r/gitea/gitea/tags?name=1.23-nightly