Troubleshooting: Embedding Issues
Fix problems when embedding FormRobin forms on your website using iframes.
Common Embedding Problems
- Form doesn't appear in iframe
- "Access denied" or domain error
- Form cut off or wrong size
- Form works standalone but not embedded
Issue: Domain Not Whitelisted
Symptoms: Blank iframe, access denied message, form loads on FormRobin but not your site.
Solution:
- Go to Settings ➜ Domains
- Add your website domain (e.g.,
example.com
) - Include
www.
version if applicable - Save and test again
- Wait 1-2 minutes for changes to propagate
Issue: Incorrect Embed Code
Solution:
- Get fresh embed code from FormRobin
- Copy the entire
<iframe>
tag - Don't modify the src URL
- Paste exactly into your website HTML
Issue: Form Cut Off or Wrong Size
Solution:
- Adjust iframe
height
attribute (e.g.,height="800"
) - Set
width="100%"
for responsive width - Remove any CSS that restricts iframe size
- Test on mobile and desktop
Issue: Content Security Policy Blocking
Symptoms: Browser console shows CSP errors.
Solution:
- Add
forms.formrobin.com
to your CSPframe-src
directive - Example:
Content-Security-Policy: frame-src 'self' forms.formrobin.com;
- Contact your website administrator if unsure
Issue: Mixed Content (HTTP/HTTPS)
Symptoms: Iframe blocked on HTTPS site.
Solution:
- Ensure embed code uses HTTPS URL
- FormRobin URLs should start with
https://
- Don't embed HTTPS content on HTTP pages
Issue: Browser Cache Showing Old Version
Solution:
- Hard refresh: Ctrl+F5 (Windows) or Cmd+Shift+R (Mac)
- Clear browser cache
- Test in incognito/private mode
- Try different browser
Still having embedding issues? Contact support with your website URL and embed code!