kudu: outboundRules that modify response headers don't seem to work

The following applicationHost.xdt does not change the Server and X-Powered-By response headers

<?xml version="1.0"?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
    <location path="%XDT_SITENAME%" xdt:Transform="InsertIfMissing" xdt:Locator="Match(path)">
        <system.webServer xdt:Transform="InsertIfMissing">
            <rewrite xdt:Transform="InsertIfMissing">
                <outboundRules rewriteBeforeCache="true" xdt:Transform="InsertIfMissing">
                    <rule name="replace Server header">
                        <match serverVariable="RESPONSE_Server" pattern=".+" />
                        <action type="Rewrite" value="" />
                    </rule>
                </outboundRules>
            </rewrite>
        </system.webServer>
    </location>
</configuration>

It seems like it should based on the documentation

http://www.iis.net/learn/extensions/url-rewrite-module/url-rewrite-module-20-configuration-reference#Setting_Response_Headers

About this issue

Original URL
State: closed
Created 8 years ago
Comments: 15 (8 by maintainers)

Most upvoted comments

What you have works fine and can remove various headers generated from the site (e.g. try ETag). But I think these two are special.

Try this completely different xdt (and read this):

<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <system.webServer>
    <httpProtocol>
      <customHeaders>
        <add xdt:Transform="Remove" />
      </customHeaders>
    </httpProtocol>
    <security>
      <requestFiltering removeServerHeader="true" xdt:Transform="SetAttributes(removeServerHeader)" />
    </security>
  </system.webServer>
</configuration>

davidebbo on Mar 7, 2016