at the end of your shortcode for the custom field add (hacky I know!)
<div class=”g-recaptcha” data-sitekey=”YOUR_CAPTCHA_KEY_HERE”></div>’
[input type=”submit” class=”btn” value=”Submit”] [/fu-upload-form]
Cheers
Dave
I can also confirm that once you add suppress_default_fields=”true” then the captcha disappears
you could try this php/js/smarty online formatting tool, if you get stuck
https://www.ejectamenta.com/online-apps/code2html.html
I have a webpage with a tool for formatting code as valid html for websites, maybe it can help you
https://www.ejectamenta.com/online-apps/code2html.html