Snippet Not Detected
What to do when the installation check can’t find your snippet.
Common causes
If you’ve added the Lead to Sheet snippet to your website but the installation check says it can’t find it, here are the most common reasons:
- The snippet hasn’t been published yet — make sure you’ve saved and published your changes
- Your website is using a cache — clear your website’s cache (Cloudflare, WP Super Cache, CDN, etc.)
- The snippet is on the wrong page — it needs to be in the <head> section of pages with forms
- The snippet was modified — make sure you pasted the exact code without changes
- Your website blocks external scripts — check your Content Security Policy (CSP) settings
How to verify manually
You can manually check if the snippet is installed correctly:
- 1
Open your website in a browser
Go to a page where you have a form.
- 2
View the page source
Right-click on the page and select "View Page Source" (or press Ctrl+U / Cmd+U).
- 3
Search for the snippet
Press Ctrl+F / Cmd+F and search for "leadtosheet" or "sdk.min.js". You should see the snippet code in the <head> section.
- 4
Test with a form submission
The most reliable test is to submit a form on your site and check if it appears in your Forms & Leads page within a few seconds.
Platform-specific notes
WordPress with caching plugins
If you use WP Super Cache, W3 Total Cache, or LiteSpeed Cache, clear the cache after adding the snippet. Some caching plugins also need the snippet URL added to an exclusion list.
Single-page applications (React, Vue, Angular)
SPAs load content dynamically. The installation checker fetches your page server-side, which may not include dynamically-injected scripts. If the checker fails but your forms are being captured, the snippet is working correctly.
Webflow and Squarespace
After adding the snippet in Custom Code settings, you must publish your site for the changes to go live. Previewing the site in the editor does not include custom code.