My project Intranet website is not showing some pages in Microsoft Edge and it is working in IE7 fine and when I tested In the using F12 console it shows below error in console
Invalid HTML5 DOCTYPE. Consider using the interoperable form "".
HTML1114: Codepage iso-8859-1 from (HTTP header) overrides conflicting codepage utf-8 from (META tag)
In my Pages it is using as below
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=7" />
What to change in the DOCTYPE and in the meta tag?
This error shows up because you specified encoding inboth Content-Type HTTP Header and tag, and they are using different encode methods.
The solution is to modify the Content-Type HTTP Header to give a UTF-8 encoding, or to change the page charset in the meta tag to iso-8859-1 (which may introduce other problems).
More detail, please check this thread and the HTML charset Attribute.