Integrating google invisible reCaptcha to a Marketo form

[Grégoire_Miche2]

Hi All,

Google recently launched a new captcha under the name of "invisible reCaptacha". See here for the details on the integration.

Has anyone looked into integrating it with Marketo forms?

Also google proposes a way to verify the user's response from the backend. It this a mandatory step? It apparently takes an additional field and a webhook call.

I am not sure I like it if I need to check every form submission in the back end, instead of simply blocking the submission from the front end...

-Greg

[SanfordWhiteman · Accepted solution]

Greg, you *have to* verify Captcha entries on the back end -- this is mandatory for all old Captcha technologies and all new ones. Without this step you're not stopping anyone from forging a successful result.

We use the invisible variant same as the previous "I am not a robot" style. Should be noted that some people will still get a visible challenge, as always.

[Grégoire_Miche2]

Hi Sanford,

Thx

-Greg

[Grégoire_Miche2]

Hi Sanford Whiteman​,

How do you integrate the invisible recaptcha with a Marketo form ?

-Greg

[SanfordWhiteman]

Same as for the v2 reCAPTCHA (easier, actually, since you don't need to make space for the widget itself inside the form).  Bind grecaptcha.execute() to the form's .onSubmit().

[Grégoire_Miche2]

Thx

[Marketo_Team]

Hi Sanford Whiteman,

When you write "bind", do you mean simply adding the following line of code to the onSubmit():

grecaptcha.execute()

Or would you recommend that we do it as in your codepen exemple and manage the Onvalidate ?

-Greg

[SanfordWhiteman]

You could do it in either event, but semantically the invisible version fits better in onSubmit, I think.

[Luke_Richardso1]

Hi Stanford,

Do you know if it's true you need your Marketo forms to be served over HTTPS in order to activate the new Invisible captcha?

[SanfordWhiteman]

I'm not aware of that restriction, but I only use SSL pages. Where are you getting that from?