Why don’t my documents display in preview?

In some cases, document search works but the preview does not display. This is usually caused by your company’s Content Security Policy (CSP).

Symptoms

• You can search and find documents in Paradigm.
• But when you click a document, the preview does not load.
• You may just see a blank space where the document should appear.

Cause

This problem is most often caused by your company’s Content Security Policy (CSP).

• Paradigm uses a technology called blob:URIs to display document previews (PDFs, etc.).
• If your company’s CSP does not allow blob:, your browser will block the preview.
• That’s why search works (documents are found) but preview stays empty.

How to check if CSP is the cause

1. Open Paradigm in your browser.

2. When the preview fails to load, open the browser console:

   • On Windows: press F12 or Ctrl + Shift + I, then go to the Console tab.
   • On Mac: press ⌥ Option + ⌘ Command + I, then go to the Console tab.

3. Look for errors mentioning CSP or **blocked **blob:URI .
   Example:

   Refused to load resource: the content security policy directive blocked "blob:"
   
   

👉 If you see this type of message, the issue is indeed CSP-related.

How to fix

If the problem is caused by CSP:

• Contact your company’s IT or security team.
• They need to update the CSP configuration to allow blob: as a valid source.

Once this is done, previews will work normally.

If the problem is not CSP

• If you don’t see CSP errors in the console, the cause may be different.
  👉 In that case, please contact our support team so we can investigate.

⚠️ Note: Paradigm cannot bypass your company’s CSP configuration. The fix must be applied on your company’s side.