If you have a CloudFlare account for your website, you may notice that your dynamic wrapper is failing. This may be due to a setting in your CloudFlare account that can easily be changed to allow for the IDX Broker wrapper to work properly.
Log in to your CloudFlare account and select your domain
Select the Caching tab.
Select Purge Everything from the dropdown menu
Wait for the progress meter to fill its way across and for the button to return back to purge
This will clear all of the cached content on the CloudFlare servers and grab fresh content from your site. If you are doing a lot of development and need to see the changes in real-time, try enabling developer mode within your CloudFlare settings. More information regarding this can be found at CloudFlare.
An article for clearing cache is also available.