Layout error with IE 9

I get this error on IE:
If I subsequently reload the page, it loads ok ?!?!?

Message: Invalid argument.
Line: 1191
Char: 84
Code: 0
URI: localhost/dhtmlxNew/dhtmlx/dhtmlx.js

Message: ‘this.polyObj[…]._collapsed’ is null or not an object
Line: 1264
Char: 74
Code: 0
URI: localhost/dhtmlxNew/dhtmlx/dhtmlx.js

my code is simply the :
/dhtmlxLayout/samples/01_init/inc/fullscreen_inner.html
file as follows:

Fullscreen Init html, body { width:100%; height:100%; margin: 0px; overflow: hidden; }

One STUPID solution (that works however!!!) is the following:

BUT WHY???

The sample dhtmlxSuite/dhtmlxLayout/samples/01_init/inc/fullscreen_inner.html works fine and it seems that your sample works too.

Yep kind Alexandra. Today it works here too… Misteries of the ol’electrickery!
Happy x-mas … If i dont get stuck again sooner … D

I have a similar problem with IE8.

The problem also happened if you open the sample file:
…\dhtmlxLayout\samples\01_init\inc\fullscreen_inner.html

The error said:
Message: ‘this.polyObj[…]._collapsed’ is null or not an object

in dhtmlxLayout.js

When I hit a “Refresh” button - the page loaded without that error.

What is interesting: if you drag and drop the html file onto opened IE 8 - you will never see that error. It happened only in the one case - if you right click on the html file and choose “Open with…” option, specifying Internet Explorer.

Can’t reproduce locally. Even with ire sample.
Could you provide us completed demo?
docs.dhtmlx.com/doku.php?id=othe … leted_demo