Is it possible to disable compatibility mode in ie9 using js?

Question

JavaScript

Essence: there is a js code that is embedded on the page.
If in ie9 this page does not specify the `html` doctype or meta tag

<meta http-equiv="x-ua-compatible" content="IE=Edge"/>

, then the page will run in compatibility mode, i.e. in ie8 mode, which will cause the code to become inoperable.
Is it possible to somehow forcefully disable compatibility mode through js code? Tried appending the meta tag

<meta http-equiv="x-ua-compatible" content="IE=Edge"/>

- did not help.

Answer 1

You can set the HTTP header "X-UA-Compatible"...