X-UA兼容在C＃WebBrowser控件中不起作用
[英]X-UA-Compatible doesn't work in C# WebBrowser control
问题描述
I have webpage loaded in winforms WebBrowser control. 
我在winforms WebBrowser控件中加载了网页。 That page need to be rendered in IE8 mode so I set X-UA-Compatible to IE=8 : 该页面需要以IE8模式呈现，因此我将X-UA-Compatible为IE=8 ：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl" lang="pl">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=8" >
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="PRAGMA" content="NO-CACHE" />
Unfortunately when I check user agent I still have MSIE 7.0. 不幸的是，当我检查用户代理时，我仍然拥有MSIE 7.0。 What can be the reason that X-UA-Compatible is ignored. X-UA-Compatible被忽略的原因可能是什么。 When I open my page directly in IE9 all is well - document mode is switched to IE8. 当我直接在IE9中打开页面时，一切都很好-文档模式已切换为IE8。
My user agent: 我的用户代理：
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E; InfoPath.3)
1 个解决方案
解决方案1
0 2017-02-23 01:29:32
"X-UA-Compatible" only affects the WebBrowser controls content mode, but not the UserAgent Header it would send. “ X-UA兼容”仅影响WebBrowser控件的内容模式，而不影响它将发送的UserAgent标头。 (see https://blogs.msdn.microsoft.com/patricka/2015/01/12/controlling-webbrowser-control-compatibility/ ) （请参阅https://blogs.msdn.microsoft.com/patricka/2015/01/12/controlling-webbrowser-control-compatibility/ ）
Also, the UserAgent header is part of the HTTP request, which would have already been transmitted by the time the server starts sending its response, including any "X-UA-Compatible" value. 另外，UserAgent标头是HTTP请求的一部分，在服务器开始发送其响应时（包括任何“ X-UA-Compatible”值），该请求已经被发送。
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