reCAPTCHA ERROR: Invalid domain for site key
I have implemented my reCAPTCHA in line with as is shown in the example.
I have this script in the head tag:
<script src="https://www.google.com/recaptcha/api.js"></script>
In my form in HTML I have:
<div class="g-recaptcha" data-sitekey="my public sitekey here"></div>
But when I load the form I get this error:
ERROR: Invalid domain for site key
I have confirmed that this is the correct site key for my domain.
The code is currently in a subdomain so I thought maybe that was the problem so I also added the subdomain to the Google reCAPTCHA admin but still get the error.
The exact same code works 100% in a different domain (with a key specific to that domain).
What could be the problem?
Answer
In case someone has a similar issue. My resolution was to delete the key that was not working and got a new key for my domain. And this now works with all my sub-domains as well without having to explicitly specify them in the recaptcha admin area.