Invalid server side browser detection

I have an ASP.NET MVC 4 application and I am having server side browser detection issues. Client with Opera userAgent "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.104 Safari/537.36 OPR/25.0.1614.63"

send a request, but for the browser name identified as "Chrome" and this is wrong.

var browserName = Request.Browser.Browser;

      

        
        
        
      

    

I want to browserName

be defined as "Opera". I tried to override object creation Request.Browser

.

Solution 1:

I created a file "browserCaps.config" and added an xml element for Opera to this file.

<browserCaps>
  <use var="HTTP_USER_AGENT" />
      ...
      <case match="Chrome/\d+\.\d+\.\d+.\d+\sSafari/\d+\.\d+\sOPR/(?'version'(?'major'\d+)(?'minor'\.\d+)\.\d+.\d+)">
        browser=Opera
        version=${version}
        majorversion=${major}
        minorversion=${minor}
      </case>
      ...
</browserCaps>

      

        
        
        
      

    

It works great, but I don't like this solution because it overrides all browsers and I need to update it manually.

Solution 2:

I added the file "opera.browser" to the "App_Browsers" folder:

<browsers>
   <browser id="Opera" parentID="Chrome">
      <identification>
         <userAgent match="OPR/(?'version'(?'major'\d+)(\.(?'minor'\d+)?)\w*)" />
      </identification>

      <capabilities>
         <capability name="browser" value="Opera" />
         <capability name="majorversion" value="${major}" />
         <capability name="minorversion" value="${minor}" />
         <capability name="type" value="Opera${major}" />
         <capability name="version" value="${version}" />
      </capabilities>
   </browser>
</browsers>

      

        
        
        
      

    

I sent the first request from Opera userAgent, it worked out and browserName

identified as "Opera", but then I sent a second request from the user ChromeAgent and browserName

which is still identified as "Opera". What am I doing wrong?