Unable to view/edit cornerstone content after update

Hi there,

After updating Cornerstone today, I’ve since been unable to edit any of my blog posts/pages. I keep getting the same error:
‘The preview could not load due to the iframe response being incomplete.’

Is there anything I can do to fix this, or is it a bug with the update?

Thanks so much!

Hello @vancouverwithlove,

Thanks for writing to us.

There might be a few different reasons for this issue, I would suggest you troubleshoot with a few of the common issues before we investigate your settings.

  1. Testing For Plugin Conflict
  2. Child Theme
  3. Css/Js Customization
  4. Increasing Php Memory Limit
  5. Disabling Cache
  6. Disabling Cdn
  7. Permalinks

If none of those work, It would be best if you could copying your live website to your staging area. and send your details in a secure note so that we can investigate your setting without breaking your live site. Please provide the following details

  • WordPress Login URL
  • Admin level username and password
  • FTP details (ask your web host if you’re not familiar with this)

You can find the Secure Note button at the bottom of your posts


Hi Prakash,

Thanks for all these tips. After testing out issue #2, it became apparent that although Cornerstone had updated, Theme X hadn’t. I think this was what was causing the issue. It seems to be working now!


Hi Elizabeth,

Great to hear it is working now! Thanks for confirming with us.

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