angularjs - IE 8 selecting n+1 index -

with ie 8, if have select list so...

            <select required ng-options="n n in monthnumbers" ng-model="month">             </select>

...then angular adds blank first option in. when select option, ie 8 select option comes after it. if select month 1, select month 2.

if add initial element this...

        <select required ng-options="n n in monthnumbers" ng-model="month">            <option></option>         </select>

... problem fixed. angular won't remove empty first element when other item selected behavior want.

is there decent way around this?

i added ng-disabled="true" manually added initial options , stops people selecting them in ie 8.

Live