The version is 11.4.2 I set up a URL rewire for the site to remove the trailing slash. It works, however, the image generator stopped working on the front end. Urls like image.png?width=300 shows the original image.

Not sure what took place here.

Code in the startup.cs

app.UseHttpsRedirection();

var rewriteOptions = new RewriteOptions().AddIISUrlRewrite(env.ContentRootFileProvider, "IISUrlRewrite.xml");

app.UseRewriter(rewriteOptions);

// This line is needed for the rewrites to take effect.
app.UseStaticFiles();



app.UseUmbraco()
    .WithMiddleware(u =>
    {
        u.UseBackOffice();
        u.UseWebsite();
    })
    .WithEndpoints(u =>
    {
        u.UseInstallerEndpoints();
        u.UseBackOfficeEndpoints();
        u.UseWebsiteEndpoints();
    });

Content in IISUrlRewrite.xml

<?xml version="1.0" encoding="utf-8" ?>
<rewrite>
  <rules>
    <rule name="RemoveTrailingSlashRule1" enabled="true" stopProcessing="true">
      <match url="(.*)/$" />
      <conditions>
        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
        <add input="{REQUEST_URI}" pattern="^/App_Plugins/" negate="true" />
        <add input="{REQUEST_URI}" pattern="^/umbraco" negate="true" />
        <add input="{REQUEST_URI}" pattern="^/media" negate="true" />

      </conditions>
      <action type="Redirect" url="{R:1}" />
    </rule>
  </rules>
</rewrite>

Thanks