[SOLVED] - Google reCaptcha: "ERROR for site owner: invalid site key."

Not sure what is happening here but I activated Google reCaptcha under Admin > Extensions > Extensions > Captchas and somehow the site key or secret key appears to be invalid. The Google reCaptcha validation on my store front-end says "ERROR for site owner: invalid site key". I copied the exact key that showed up in my Google Captcha settings, no spaces. Any instructions I could find on the internet tell me to generate a new key but there is no such option.

Anyone knows how to solve this?

Double-check that your domain is entered correctly in the Google admin panel. You should be able to regenerate a new key by just deleting your existing keys/setup, and create a new one. You can do that here:

https://www.google.com/recaptcha/admin

I switched to reCaptcha v2 and now it appears to be working!

Ah yes, if you're using v3 keys they won't work in the normal OpenCart captcha. It was created before v3 was out, so it doesn't explicitly mention that it uses the "normal v2" recaptcha, though it probably should in future releases.

Glad I could help you figure it out.

Johnathan wrote: ↑

Sat Feb 22, 2020 10:48 pm

Ah yes, if you're using v3 keys they won't work in the normal OpenCart captcha. It was created before v3 was out, so it doesn't explicitly mention that it uses the "normal v2" recaptcha, though it probably should in future releases.

Glad I could help you figure it out.

Added in FAQ.

I don't know what version 3 does as I thought that it would do the "select traffic lights" or the "select all crosswalks" pop-up, but version 2 actually does this. It works perfectly

v3 runs in the background invisibly, and doesn't actually have a captcha that customers have to solve. It assigns the visitor a score and then you can prevent/allow submitting a form based on that score. I have a Google reCAPTCHA v3 extension that works with it, but it's different than the v2 captcha, so it may not be what you want. (It does have a v2 fallback option, though.)

I'm not sure what's on the roadmap for OpenCart 3.1, they may add support for v3, or they may stick with v2. As far as I know v2 is still secure, so you shouldn't have issues with bots or spam when using it.

I 'm facing the same problem with reCaptha V3.
I was using the pre-installed captha module in Opencart 3.0.3.2

We have to download another extension for reCaptha v3 ?
I found this one, reCaptcha v3 (https://www.opencart.com/index.php?rout ... e=0&page=2) but say is for older version. Do I have to buy a new one ?

thanks in advance !

The pre-installed Google reCAPTCHA extension is for recaptcha v2. You need to sign up for the normal v2 keys (not the "invisible" ones, or the v3 ones) if you want to use the built-in one.

If you want a v3 recaptcha, you need to use a third-party extension at this point.