Sorry for the double post but couldn't seem to be able to edit the previous.

This does not happen on Safari, and here is a jsfiddle in case it's of any use:
https://jsfiddle.net/vm4e78j3/5/

Have you found a solution to this? If the iframe (with detail=true) is not in the view when the page loads and users scroll down, the iframe loads while users are scrolling and the auto-centering does not work.

I specify width and height in the call, so not sure why auto-centering is needed at all.

Any suggestions more than welcome!