XSS - Prevention works on IE but does not work in Chrome

By preventing an XSS attack (alert (123;)) using the Html.Encode the code on screen is as follows:

<select class="combobox" id="xssSelect" name="cmbXss">
<option selected="selected" value="1">&lt;script&gt;alert(123;)&lt;/script&gt;</option>
<option value="2">Opcao2</option>
<option value="3">Opcao3</option>
</select> 

If you run in IE this combo works perfectly, however in Chrome it hangs and I can not change the options. Give to do this test by the stackoverflow itself executing the code snippet between IE and Chrome.

Note: I'm using Chrome version Version 43.0.2357.81 m

Note2: The stackoverflow itself is preventing XSS attack when I enter the value ... then it follows the value that I am preventing in my image code