Modal interactions aren't allowed - for example, calls to JavaScript alert, confirm, and prompt functions aren't allowed because they're modal.įurther, the runtime framework provides the following benefits to ensure that an Office Add-in can't damage the user's environment.ĭoesn't require. Only indirect access to the Office client application's UI thread is allowed. This framework protects the user's experience in the following ways.Īccess to the Office client application's UI frame is managed. Office Add-ins are secured by an add-in runtime environment, a multiple-tier permissions model, and performance governors.
In this article Understanding the add-in runtime
