How to change iframe tab height in facebook when page is zoomed out?

Question

Facebook

Good afternoon! I have a tab in facebook from static pages, the height of the pages is fixed. With the standard solution:

window.onload = function() {
      FB.Canvas.setAutoGrow(10);
      }

we managed to increase the height of the tab, only here is one bad luck: each page has a different height (from 690px to 2600px) and when switching to a page with a large height (2400) and then back to a small one (1000), there is a lot of free space under the tab (the difference in height with the tallest page) as if the script didn't work anymore. What is the solution so that when the height decreases, the autoresize works?

Answer 1

I write the answer myself, maybe it will be useful.

FB.Canvas.setSize({height:600});
setTimeout("FB.Canvas.setAutoGrow()",500);