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buildElementor•extensionElementorhourglass_bottomloading-issueinfoajaxcodeJavaScript•labelCommon•warningModerate

Elementor preview mode not working

Elementor preview mode fails when the editor cannot load the preview iframe. The issue usually stems from a blocked AJAX request or a script conflict. When the request is blocked, the iframe remains empty and Elementor shows an error message.

The problem appears when server settings, plugins, or themes interfere with Elementor’s loading process. It often results in 403 or 500 responses, mixed‑content warnings, or missing postmeta.

Symptoms

[dashicons-warning]
Blank preview area
The right‑hand pane stays empty and shows a message about preview not loading.
[dashicons-dismiss]
403 or 500 toast
A toast notification appears with a 403 Forbidden or 500 Internal Server Error message.
[dashicons-editor-code]
Console errors
Browser console shows failed resource loads or connection reset errors.

Common Causes

Plugin conflict
Another plugin blocks Elementor’s AJAX request or removes required hooks.
Server restriction
ModSecurity, firewall, or request size limits block the preview request.
Permalink or .htaccess issue
Corrupt rewrite rules cause 403 or 500 responses for the preview URL.
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