core/flyout_base.js
function() {
    var topBlocks = this.workspace_.getTopBlocks(false);
    for (var i = 0, block; block = topBlocks[i]; i++) {
      block.removeSelect();
    }
  }
function() {
    var topBlocks = this.workspace_.getTopBlocks(false);
    for (var i = 0, block; block = topBlocks[i]; i++) {
      block.removeSelect();
    }
  }
function ( ) { var topBlocks = this . workspace_ . getTopBlocks ( false ) ; for ( var i = 0 , block ; block = topBlocks [ i ] ; i ++ ) { block . removeSelect ( ) ; } }
IE 11 is an incompetent browser that fails to fire mouseout events. When the mouse is over the background, deselect all blocks.
IE 11 is an incompetent browser that fails to fire mouseout events . When the mouse is over the background deselect all blocks .