When cliking on the minimize button, it is observed that an unecessary reflow operation is triggered. I can understand that the reflow is necessary to reconstruct the window when clicking on the taskbar entry to *re-open* the browser window. But I am failing to understand why a reflow should be done when minimizing the window given that there is no rendering aftewards. By getting rid of the unecessary reflow, the minimization will be instantaneous, no matter how large the document is.

I think these are the same ... *** This bug has been marked as a duplicate of 639 ***