Where to place <httpProtocol> in IIS Server web.config file
You should put it under the system.webServer node of the file:
<?xml version="1.0" encoding="UTF-8"?><configuration> <system.webServer> <rewrite> <rules> <rule name="wordpress" patternSyntax="Wildcard"> <match url="*"/> <conditions> <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true"/> <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true"/> </conditions> <action type="Rewrite" url="index.php"/> </rule> </rules> </rewrite> <!-- PUT IT HERE --> <httpProtocol> <customHeaders> <add name="X-UA-Compatible" value="IE=9; IE=10; IE=11" /> </customHeaders> </httpProtocol> </system.webServer></configuration>