ForgeRock Developer Experience

Implement a CAPTCHA

The ForgeRock Login Widget supports the use of a CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart), which helps to prevent automated scripts from attempting to authenticate to your servers.

To use a CAPTCHA in the ForgeRock Login Widget, add the CAPTCHA node to your authentication journey.

Supported CAPTCHA variants

ForgeRock Login Widget supports the following CAPTCHA variants:

CAPTCHA variant Support

hCaptcha

Full

reCAPTCHA v2

Full, except Invisible reCAPTCHA.

reCAPTCHA v3

Full

reCAPTCHA Enterprise

Not currently supported

Configure your app

The ForgeRock Login Widget cannot inject the scripts necessary to use a CAPTCHA in your app.

You must add the relevant scripts yourself, usually to the <head> of the page:

hCaptcha

If you are using hCaptcha with the ForgeRock Login Widget, you must first have the JavaScript loaded into your app’s DOM:

<script src="https://js.hcaptcha.com/1/api.js" async defer></script>
reCAPTCHA v2

If you are using Google reCAPTCHA v2 with the ForgeRock Login Widget, you must first have the JavaScript loaded into your app’s DOM:

<script async src="https://www.google.com/recaptcha/api.js"></script>
reCAPTCHA v3

If you are using Google reCAPTCHA v3, you must append your site key in a query string parameter named render:

<script async src="https://www.google.com/recaptcha/api.js?render={reCAPTCHA_site_key}"></script>

When calling a journey that uses reCAPTCHA v3 you can add a recaptchaAction property with a custom value. That value tags the event in the reCAPTCHA console so that you can track different usage:

journey.start({
    journey: 'reCAPTCHAv3journey',
    // …​.any other journey config required…​.
    recaptchaAction: 'loginVIPArea', // reCAPTCHA v3 only, falls back to journey name
});

If you do not provide a recaptchaAction value, the SDK attempts to use the name of the journey instead, if available.

Test a CAPTCHA

With your app configured and the necessary scripts in place, you can visit any journey that contains a CAPTCHA node to test a CAPTCHA with the ForgeRock Login Widget.

For example, the following image shows how the ForgeRock Login Widget handles a CAPTCHA node alongside a platform username and platform password nodes, all within a single page node:

Login Widget handling reCAPTCHA v2 in a page node
Figure 1. Login Widget handling reCAPTCHA v2 in a page node

Troubleshooting

This section contains information on how to diagnose issues when using a CAPTCHA with the ForgeRock Login Widget.

Why does the reCAPTCHA display "ERROR for site owner: Invalid key type"?

Ensure the site key you have specified in the CAPTCHA node is configured for the version of reCAPTCHA type you want to use.

For example, the following image shows a configuration for v2 Tickbox:

recaptcha v2 google settings en

When using a v2 site key, do not select ReCaptcha V3 Node in the CAPTCHA node configuration.

Why does the browser console display "Error: Invalid site key or not loaded in api.js"?

Ensure you have added the correct site key value as a render query parameter of the Google api.js script.

For example:

<script async src="https://www.google.com/recaptcha/api.js?render=1249672216234"></script>
Why does the reCAPTCHA display "Localhost is not in the list of supported domains for this site key."?

The localhost domain is blocked from working with reCAPTCHA by default.

You can add the domain to the site key configuration for testing purposes if required.

It can take several minutes for changes to the allowed domains to take effect.

For more information, refer to Google’s reCAPTCHA documentation.

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