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# `IE8 in quirks mode is unsupported`
error in component `$sce`

    Strict Contextual Escaping does not support Internet Explorer version < 9 in quirks mode.  You can fix this by adding the text <!doctype html> to the top of your HTML document.  See http://docs.angularjs.org/api/ng.$sce for more information.

## Description

This error occurs when you are using AngularJS with `Strict Contextual Escaping (SCE)` mode enabled (the default) on IE8 or lower in quirks mode.

In this mode, IE8 allows one to execute arbitrary javascript by the use of the `expression()` syntax and is not supported. Refer MSDN Blogs > IEBlog > Ending Expressions to learn more about them.

To resolve this error please specify the proper doctype at the top of your main html document:

    <!doctype html>