diff --git a/Lombiq.Hosting.MediaTheme.Bridge/Helpers/RequestUrlPrefixRemover.cs b/Lombiq.Hosting.MediaTheme.Bridge/Helpers/RequestUrlPrefixRemover.cs
new file mode 100644
index 0000000..fdf3b5c
--- /dev/null
+++ b/Lombiq.Hosting.MediaTheme.Bridge/Helpers/RequestUrlPrefixRemover.cs
@@ -0,0 +1,19 @@
+using OrchardCore.Environment.Shell;
+using System;
+
+namespace Lombiq.Hosting.MediaTheme.Bridge.Helpers;
+
+internal static class RequestUrlPrefixRemover
+{
+    public static string RemoveIfHasPrefix(string path, ShellSettings shellSettings)
+    {
+        var requestUrlPrefix = shellSettings.RequestUrlPrefix;
+        if (string.IsNullOrEmpty(requestUrlPrefix) ||
+            !path.StartsWith("/" + requestUrlPrefix, StringComparison.OrdinalIgnoreCase))
+        {
+            return path;
+        }
+
+        return path[(requestUrlPrefix.Length + 1)..];
+    }
+}
diff --git a/Lombiq.Hosting.MediaTheme.Bridge/Middlewares/MediaThemeAssetUrlRewritingMiddleware.cs b/Lombiq.Hosting.MediaTheme.Bridge/Middlewares/MediaThemeAssetUrlRewritingMiddleware.cs
index cfb1182..d5bd554 100644
--- a/Lombiq.Hosting.MediaTheme.Bridge/Middlewares/MediaThemeAssetUrlRewritingMiddleware.cs
+++ b/Lombiq.Hosting.MediaTheme.Bridge/Middlewares/MediaThemeAssetUrlRewritingMiddleware.cs
@@ -1,4 +1,5 @@
 using Lombiq.Hosting.MediaTheme.Bridge.Constants;
+using Lombiq.Hosting.MediaTheme.Bridge.Helpers;
 using Microsoft.AspNetCore.Http;
 using OrchardCore.Environment.Shell;
 using OrchardCore.FileStorage;
@@ -41,13 +42,7 @@ public async Task InvokeAsync(
         string assetUrl;
         if (!context.IsDevelopment() || await mediaFileStore.FileExistsAsync(mediaPath))
         {
-            assetUrl = mediaFileStore.MapPathToPublicUrl(mediaPath);
-
-            if (!string.IsNullOrEmpty(shellSettings.RequestUrlPrefix) &&
-                assetUrl.StartsWith("/" + shellSettings.RequestUrlPrefix, StringComparison.OrdinalIgnoreCase))
-            {
-                assetUrl = assetUrl[(shellSettings.RequestUrlPrefix.Length + 1)..];
-            }
+            assetUrl = RequestUrlPrefixRemover.RemoveIfHasPrefix(mediaFileStore.MapPathToPublicUrl(mediaPath), shellSettings);
         }
         else
         {
diff --git a/Lombiq.Hosting.MediaTheme.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs b/Lombiq.Hosting.MediaTheme.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
index 422611d..ed092cc 100644
--- a/Lombiq.Hosting.MediaTheme.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
+++ b/Lombiq.Hosting.MediaTheme.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
@@ -8,25 +8,29 @@ namespace Lombiq.Hosting.MediaTheme.Tests.UI.Extensions;
 
 public static class TestCaseUITestContextExtensions
 {
-    public static async Task TestMediaThemeDeployedBehaviorAsync(this UITestContext context)
+    public static async Task TestMediaThemeDeployedBehaviorAsync(this UITestContext context, string tenantPrefix = null)
     {
         await context.ExecuteMediaThemeSampleRecipeDirectlyAsync();
         await context.GoToMediaThemeTestContentPageAsync();
-        AssertElements(context, "v");
+        AssertElements(context, "v", tenantPrefix);
     }
 
-    public static async Task TestMediaThemeLocalBehaviorAsync(this UITestContext context)
+    public static async Task TestMediaThemeLocalBehaviorAsync(this UITestContext context, string tenantPrefix = null)
     {
         await context.SetThemeDirectlyAsync("Lombiq.Hosting.MediaTheme.Tests.Theme");
         await context.GoToHomePageAsync(onlyIfNotAlreadyThere: false);
-        AssertElements(context, "mediatheme");
+        AssertElements(context, "mediatheme", tenantPrefix);
     }
 
-    private static void AssertElements(UITestContext context, string cacheBustingParameterName)
+    private static void AssertElements(UITestContext context, string cacheBustingParameterName, string tenantPrefix)
     {
-        context.Exists(By.XPath($"//head//link[contains(@href, '/mediatheme/example.css?{cacheBustingParameterName}=')]").Hidden());
+        context.Exists(By.XPath(
+            $"//head//link[contains(@href, '{GetTenantUrlPrefix(tenantPrefix)}/mediatheme/example.css?{cacheBustingParameterName}=')]").Hidden());
         context.Exists(By.XPath("//p[contains(., 'This is an example template hosted in Media Theme.')]"));
-        context.Exists(By.XPath("//img[contains(@src, '/mediatheme/example.png')]"));
-        context.Exists(By.XPath($"//img[contains(@src, '/mediatheme/example2.png?{cacheBustingParameterName}=')]"));
+        context.Exists(By.XPath($"//img[contains(@src, '{GetTenantUrlPrefix(tenantPrefix)}/mediatheme/example.png')]"));
+        context.Exists(By.XPath($"//img[contains(@src, '{GetTenantUrlPrefix(tenantPrefix)}/mediatheme/example2.png?{cacheBustingParameterName}=')]"));
     }
+
+    private static string GetTenantUrlPrefix(string tenantName) =>
+        string.IsNullOrEmpty(tenantName) ? string.Empty : "/" + tenantName;
 }