DEPRECATEDMethod described in this article does not work any more because browser security has changed since 2015. Now it is not possible to directly access client side JavaScript model. We have a new article that explains how to automate TinyMCE
https://www.inflectra.com/Support/KnowledgeBase/KB541.aspx
When you have a rich text box in a web application, the process for recording a test and playing it back will be different to a standard HTML plain text box. When you are using the popular TinyMCE rich text box you have more options to automate it by using its special client-side JavaScript API.
The world moves forward and our older KB articles related to TinyMCE became outdated. In this article we present a modern way (as of year 2020) of automating TinyMCE controls.