FXM

Working with FXM, I faced a very interesting sporadic issue: every 10-15 times some of the components were not loading on a page. A response object was identical all the time, with no errors in the console, no changes in a site code since the last deployments. I think you get the situation. However, this issue was able to cause a lot of trouble for a client as FXM was used on many legacy sites....

Federated Experience Manager (FXM) is a marketing tool from Sitecore, that allows you to use components defined in your WCM on other site and application. This is very useful if you need to update multiple legacy applications or try some part of a new design on an existing site. Like most of the other similar tools, Sitecore provides you with a JavaScript beacon that has to be included in a target site....