Javascript code analyzer fails to process ASP.NET special tags.

I have the following code in my .aspx file:

<script type="text/javascript">
...
var js_variable = <%= _PublicFieldFromCodeBehindClass %>;
...
</script>

This code compiles and executes just fine. But I always have a "Syntax error" in my error list after building the project. And the semicolon at the end of the string is underlined red:

Apparently, it's a JS analyzer bug. How to workaround it?