Rewrite rule error: HTTP Error 500.50 - URL Rewrite Module Error. The expression “https://abc.com/{R:1}” cannot be expanded

Question

Whenever someone makes request over HTTP protocol I rewrite the url to make it HTTPS. This is the code in web.config:

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Answer 1

The matches are zero based.

<action type="Rewrite" url="https://abc.com/{R:1}" />

Won't work because you only have one match. You need:

<action type="Rewrite" url="https://abc.com/{R:0}" />

Also, this won't work, because you can only match on the path below the site root.

<match url="^(?!https://).*" ignoreCase="false" />

It looks like you are checking for ssl. Try this instead:

      <conditions logicalGrouping="MatchAll" trackAllCaptures="false">
        <add input="{HTTPS}" pattern="^OFF$" />
      </conditions>

Answer 2

You can redirect through web config to Hope it will help full

<rule name="Redirect to WWW" stopProcessing="true">
  <match url=".*" />
     <conditions>
       <add input="{HTTP_HOST}" pattern="^abc.com$" />
     </conditions>
  <action type="Redirect" url="http://www.abc.com/{R:0}" redirectType="Permanent" />
</rule>