Dynamic css injection problem in ie!

Hi, i’m using vaadin 7.1 snapshot (7.1.0.nightly-5552dce2c4a4dd107c6794c8ffa717bfaf14152c). I try to use the dynamic CSS style injection. But ie10 seems like override all my style when applying the new style. The previous added style has gone. But it work fine in Firefox and chrome. My code: [code]
final VerticalLayout layout = new VerticalLayout();
layout.setMargin(true);
setContent(layout);

    TextField IPTf = new TextField("NAME");
    TextField PortTf = new TextField("AGE");

    Button delBttn = new Button("DELETE");
    delBttn.setImmediate(true);
    delBttn.setStyleName("link");

    Button saveBttn = new Button("SAVE");
    saveBttn.setImmediate(true);
    saveBttn.setStyleName("link");

    FormLayout form = new FormLayout();
    form.setMargin(new MarginInfo(true, false, true, false));
    form.addComponent(IPTf);
    form.addComponent(PortTf);

    HorizontalLayout hLayout = new HorizontalLayout();
    hLayout.setStyleName("layout");
    hLayout.setCaption("POLICY");
    hLayout.addComponent(form);
    hLayout.addComponent(delBttn);
    hLayout.addComponent(saveBttn);

    final OptionGroup option = new OptionGroup("Change color");
    option.setImmediate(true);
    option.addItem("default");
    option.addItem("color 1");
    option.addItem("color 2");
    option.select("default");

    option.addValueChangeListener(new ValueChangeListener() {

        @Override
        public void valueChange(ValueChangeEvent event) {
            if (option.getValue().equals("color 1")) {
                Page.getCurrent().getStyles().add(".v-app .layout { background-color: #EFFAD3} ");
            } else if (option.getValue().equals("color 2")) {
                Page.getCurrent().getStyles().add(".v-app .layout { background-color: #CED9FD} ");
            } else {
                Page.getCurrent().getStyles().add(".v-app .layout { background-color: #eeeeee} ");
            }
        }
    });

    layout.addComponent(hLayout);
    layout.addComponent(option); 

[/code]

my css : [code]
@mixin testing {
@include chameleon;

.layout {		
	background-color: #eeeeee;
	border-top: solid 1px #B3B3B3;;				
	.v-caption {
		padding-left: 25px;
	}
}
			
.v-caption-layout {
	position: relative !important;	
	.v-captiontext {						
		font-weight: bold;
	}
}
		
.v-button {
	&.link, link.v-disabled {
		color: red;
		margin-top: 15px !important;
		padding-left: 5px !important;		
		overflow: visible !important;
				
		&:active, &:hover, &:focus {			
			.v-button-wrap {									
				box-shadow: none;		
				overflow: visible !important;	
			}	
		}																				
	} 		
}

[/code]
12893.png
12894.png

Anyone have the answer for this? Is this a bug or IE need some quirk to do it?

i use IE debug tool and i got this error when i add the style: SCRIPT5009: ‘Fj’ is undefined
script block (6), line 174 character 75

If this is reproducible, please
create a ticket
about it with the code and instructions to reproduce the problem.