The Preview Could Not Load Bug

[bradstephens3]

Hello,

I am getting the following error: The preview could not load due to iframe response being incomplete. This is most often related to a plugin conflict, or customizations introducing a PHP error.

I’ve read through other forum posts, but have not found a solution.

#1 - I’ve disabled all other plugins.
#2 - I’ve edited my wp-config.php file to contain:
define( ‘WP_MEMORY_LIMIT’, ‘256M’ );
define( ‘WP_MAX_MEMORY_LIMIT’, ‘512M’ );
#3 - Here’s is my setup:

Site

Site URL - https://www.sproutaudience.com
Home URL - https://www.sproutaudience.com

WordPress Environment

Version - 5.3.2
Debug is on - No
Language - en_US
Is Multisite - No
Memory Limit - 256M

Web Server Configuration

Software - Apache/2.2.15
PHP Version - 7.2.28
MySQL Version - 5.5.62

PHP Configuration

Post Max Size - 800M
Time Limit - 30s
Max Upload Size - 200M

Active Theme

Name - X
Version - 7.1.2
Folder - //home/sproutaudience/public_html/wp-content/themes/x/
Cornerstone Status - Enabled
Cornerstone Version - 4.1.2

Active Plugins

• Cornerstone 4.1.2

[ruenel]

Hello @bradstephens3,

Thanks for writing in! To better assist you with your issue, kindly provide us access to your site so that we can check your settings. Please create a secure note with the following info:
– Link to your site
– WordPress Admin username / password
​
To know how to create a secure note, please check this out: https://theme.co/apex/forum/t/how-to-get-support/288

Regards.

[bradstephens3]

Hi @ruenel,

I’ve sent that via a Secure Note.

Thanks.

[christian]

Hey @bradstephens3,

There is a problem with your Site URL and Home URL setup which is likely the cause of the issue. Normally, if I switch to www to non-www, there would be no problem. But, on your site, I get a redirect loop.

Please give us FTP or cPanel access so we could check your URL setup and see if it’s affecting the builder.

I just like to kindly ask that if you can, please set up a staging copy of your site. That is because when troubleshooting, it is sometimes unavoidable that your site will go down like what happened here. If we use a copy of your site for troubleshooting, we avoid that risk.

Thanks.

[bradstephens3]

Hi Christian, please roll back your changes. I now cannot load my wp-login page.

[christian]

Hey @bradstephens3,

I see that your site is working now so it looks like you’ve restored a backup. If you still wish for us to investigate the builder issue, please give us FTP access as asked previously. Please consider setting up a staging copy of your site though so we avoid the risk of disrupting your live site’s operation.

Thanks.