1. A concise explanation of the problem you're experiencing.

2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

4. The Cesium version you're using, your operating system and browser.

Are you asking if Cesium can run in an iframe? If so, the answer is yes! In fact all Sandcastle examples do run in an iframe: