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We are trying to add a custom header (X-Robots-Tag) for sitemap files in IIS 7.5. However, it does not appear that IIS supports custom headers based on a file type or wildcard (only subfolders).
Can we add a custom header for only *.xml.gz files via Web.config?
We would like to avoid making the customization via code or on our load balancer.
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In the Home pane, double-click HTTP Response Headers. In the HTTP Response Headers pane, click Add... in the Actions pane. In the Add Custom HTTP Response Header dialog box, set the name and value for your custom header, and then click OK.
As far as I know there is no way to set custom headers at the ALB level. You can however add CloudFront as a CDN in front of it, that allows you to set custom headers, which will then be passed on to the ALB.
Under Custom request headers, click Add header. Enter the Header name and Header value for the custom request header. Enter any additional custom request headers. Click Save.
Select the web site where you want to add the custom HTTP response header. In the web site pane, double-click HTTP Response Headers in the IIS section. In the actions pane, select Add. In the Name box, type the custom HTTP header name.
You can use the IIS UrlRewrite module and add a custom outbound rule to configure the custom header. Here is a sample rule you may want to use:
<system.webServer> <rewrite> <outboundRules> <rule name="Set custom HTTP response header"> <match serverVariable="RESPONSE_X_Robots_Tag" pattern=".*" /> <conditions> <add input="{REQUEST_URI}" pattern="\.xml\.gz$" /> </conditions> <action type="Rewrite" value="The value you need for this header"/> </rule> </outboundRules> </rewrite> </system.webServer> More info: UrlRewrite documentation
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