Window: sizeToContent() method

The 
Window.sizeToContent() method sizes the window
according to its content. In order for it to work, the DOM content should be loaded when
this function is called—for example, once the DOMContentLoaded event has
been thrown.
Since Firefox 20, the minimal size of the window is clamped to prevent the window from
being too small for the user to interact with.
Syntax
sizeToContent()
Parameters
None.
Return value
None (undefined).
Examples
window.sizeToContent();
Specifications
This feature is not part of any specification.
Browser compatibility
See also
Window