Sitecore analytics is not working after doing changes in IIS Url Rewrite Module

Question

Client wanted to have a trailing slash at the end of urls and it should be redirected with 301. I have configured in IIS Url Rewrite and It is working fine as expected but I am getting an issue in the Analytics Tracker as below

Sitecore version :: 9

Has anyone come across this issue? Kindly give your suggestions

Note: Sitecore experience editor is keep loading after these changes. I have tried installing sitecore rewrite module which breaks the sitecore instance.

Answer 1

Based on the error above, it looks like you are rewriting too many URL formats. Your client likely wanted folders (like "www.example.com/about-us") rewritten to have trailing slashes, not all file names.

File paths like .htm, .aspx, .css, etc. should not usually be rewritten in this way. It breaks the file extension.

Answer 2

Let say you have next rewrite rule:

<rule name="Force trailing slash" stopProcessing="true">
    <match url="(.*[^/])" />
    <action type="Redirect" url="https://{HTTP_HOST}/{R:1}/" appendQueryString="true" redirectType="Permanent" />
</rule>

You have to add conditions to avoid redirection of URL that are paths that should not be redirected (paths to files or specific Sitecore paths):

<rule name="Force trailing slash" stopProcessing="true">
    <match url="(.*[^/])" />
    <conditions logicalGrouping="MatchAll">
      <add input="{HTTPS}" pattern="off" ignoreCase="true" />
      <add input="{REQUEST_URI}" negate="true" pattern="^.*\.css$" ignoreCase="true" />
      <add input="{REQUEST_URI}" negate="true" pattern="^.*\.aspx$" ignoreCase="true" />
      <add input="{REQUEST_URI}" negate="true" pattern="^.*\.js$" ignoreCase="true" />
      <add input="{REQUEST_URI}" negate="true" pattern="^.*\.ashx$" ignoreCase="true" />
      <add input="{REQUEST_URI}" negate="true" pattern="^sitecore.*\.js$" ignoreCase="true" />
    </conditions>
    <action type="Redirect" url="https://{HTTP_HOST}/{R:1}/" appendQueryString="true" redirectType="Permanent" />
</rule>