diff --git a/src/main/kotlin/dev/typetype/server/routes/BlockedRoutes.kt b/src/main/kotlin/dev/typetype/server/routes/BlockedRoutes.kt
index f4dc71e..ced0d07 100644
--- a/src/main/kotlin/dev/typetype/server/routes/BlockedRoutes.kt
+++ b/src/main/kotlin/dev/typetype/server/routes/BlockedRoutes.kt
@@ -49,7 +49,7 @@ fun Route.blockedRoutes(blockedService: BlockedService, authService: AuthService
     }
     delete("/blocked/videos/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
-            val videoUrl = call.parameters.getAll("videoUrl")?.joinToString("/") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
+            val videoUrl = call.urlTailParameter("videoUrl") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
             val role = authService.getUserRole(userId) ?: "user"
             val deleted = blockedService.deleteVideo(userId, videoUrl, role)
             if (deleted) call.respond(HttpStatusCode.NoContent) else call.respond(HttpStatusCode.NotFound, ErrorResponse("Not found"))
diff --git a/src/main/kotlin/dev/typetype/server/routes/FavoritesRoutes.kt b/src/main/kotlin/dev/typetype/server/routes/FavoritesRoutes.kt
index c36e663..7d89191 100644
--- a/src/main/kotlin/dev/typetype/server/routes/FavoritesRoutes.kt
+++ b/src/main/kotlin/dev/typetype/server/routes/FavoritesRoutes.kt
@@ -16,13 +16,13 @@ fun Route.favoritesRoutes(favoritesService: FavoritesService, authService: AuthS
     }
     post("/favorites/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
-            val videoUrl = call.parameters.getAll("videoUrl")?.joinToString("/") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
+            val videoUrl = call.urlTailParameter("videoUrl") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
             call.respond(HttpStatusCode.Created, favoritesService.add(userId, videoUrl))
         }
     }
     delete("/favorites/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
-            val videoUrl = call.parameters.getAll("videoUrl")?.joinToString("/") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
+            val videoUrl = call.urlTailParameter("videoUrl") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
             val deleted = favoritesService.delete(userId, videoUrl)
             if (deleted) call.respond(HttpStatusCode.NoContent) else call.respond(HttpStatusCode.NotFound, ErrorResponse("Not found"))
         }
diff --git a/src/main/kotlin/dev/typetype/server/routes/PlaylistRoutes.kt b/src/main/kotlin/dev/typetype/server/routes/PlaylistRoutes.kt
index 52c82bb..03512ec 100644
--- a/src/main/kotlin/dev/typetype/server/routes/PlaylistRoutes.kt
+++ b/src/main/kotlin/dev/typetype/server/routes/PlaylistRoutes.kt
@@ -62,7 +62,7 @@ fun Route.playlistRoutes(playlistService: PlaylistService, authService: AuthServ
     delete("/playlists/{id}/videos/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
             val id = call.parameters["id"] ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing id"))
-            val videoUrl = call.parameters.getAll("videoUrl")?.joinToString("/") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
+            val videoUrl = call.urlTailParameter("videoUrl") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
             val deleted = playlistService.removeVideo(userId, id, videoUrl)
             if (deleted) call.respond(HttpStatusCode.NoContent) else call.respond(HttpStatusCode.NotFound, ErrorResponse("Not found"))
         }
diff --git a/src/main/kotlin/dev/typetype/server/routes/ProgressRoutes.kt b/src/main/kotlin/dev/typetype/server/routes/ProgressRoutes.kt
index 87e6fcb..06220d4 100644
--- a/src/main/kotlin/dev/typetype/server/routes/ProgressRoutes.kt
+++ b/src/main/kotlin/dev/typetype/server/routes/ProgressRoutes.kt
@@ -17,7 +17,7 @@ internal data class ProgressBody(val position: Long)
 fun Route.progressRoutes(progressService: ProgressService, authService: AuthService) {
     get("/progress/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
-            val videoUrl = call.parameters.getAll("videoUrl")?.joinToString("/") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
+            val videoUrl = call.urlTailParameter("videoUrl") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
             val item = progressService.get(userId, videoUrl) ?: return@withJwtAuth call.respond(HttpStatusCode.NotFound, ErrorResponse("Not found"))
             call.respond(item)
         }
@@ -32,7 +32,7 @@ fun Route.progressRoutes(progressService: ProgressService, authService: AuthServ
     }
     put("/progress/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
-            val videoUrl = call.parameters.getAll("videoUrl")?.joinToString("/") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
+            val videoUrl = call.urlTailParameter("videoUrl") ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
             val body = runCatching { call.receive<ProgressBody>() }.getOrElse {
                 return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Invalid request body"))
             }
diff --git a/src/main/kotlin/dev/typetype/server/routes/RouteUrlParameter.kt b/src/main/kotlin/dev/typetype/server/routes/RouteUrlParameter.kt
new file mode 100644
index 0000000..92c4dee
--- /dev/null
+++ b/src/main/kotlin/dev/typetype/server/routes/RouteUrlParameter.kt
@@ -0,0 +1,21 @@
+package dev.typetype.server.routes
+
+import io.ktor.server.application.ApplicationCall
+import io.ktor.server.request.queryString
+
+internal fun ApplicationCall.urlTailParameter(name: String): String? {
+    val pathUrl = parameters.getAll(name)?.joinToString("/") ?: return null
+    val normalizedPathUrl = pathUrl.withUrlSchemeSlashes()
+    val queryString = request.queryString()
+    return if (queryString.isBlank() || "?" in normalizedPathUrl) {
+        normalizedPathUrl
+    } else {
+        "$normalizedPathUrl?$queryString"
+    }
+}
+
+private fun String.withUrlSchemeSlashes(): String = when {
+    startsWith("https:/") && !startsWith("https://") -> "https://" + removePrefix("https:/")
+    startsWith("http:/") && !startsWith("http://") -> "http://" + removePrefix("http:/")
+    else -> this
+}
diff --git a/src/main/kotlin/dev/typetype/server/routes/WatchLaterRoutes.kt b/src/main/kotlin/dev/typetype/server/routes/WatchLaterRoutes.kt
index 0515649..ee55833 100644
--- a/src/main/kotlin/dev/typetype/server/routes/WatchLaterRoutes.kt
+++ b/src/main/kotlin/dev/typetype/server/routes/WatchLaterRoutes.kt
@@ -5,7 +5,6 @@ import dev.typetype.server.models.WatchLaterItem
 import dev.typetype.server.services.AuthService
 import dev.typetype.server.services.WatchLaterService
 import io.ktor.http.HttpStatusCode
-import io.ktor.server.request.queryString
 import io.ktor.server.request.receive
 import io.ktor.server.response.respond
 import io.ktor.server.routing.Route
@@ -27,15 +26,8 @@ fun Route.watchLaterRoutes(watchLaterService: WatchLaterService, authService: Au
     }
     delete("/watch-later/{videoUrl...}") {
         call.withJwtAuth(authService) { userId ->
-            val pathVideoUrl = call.parameters.getAll("videoUrl")?.joinToString("/")
+            val videoUrl = call.urlTailParameter("videoUrl")
                 ?: return@withJwtAuth call.respond(HttpStatusCode.BadRequest, ErrorResponse("Missing videoUrl"))
-            val decodedPathVideoUrl = pathVideoUrl.withUrlSchemeSlashes()
-            val queryString = call.request.queryString()
-            val videoUrl = if (queryString.isBlank() || "?" in decodedPathVideoUrl) {
-                decodedPathVideoUrl
-            } else {
-                "$decodedPathVideoUrl?$queryString"
-            }
             val deleted = watchLaterService.delete(userId, videoUrl)
             if (deleted) {
                 call.respond(HttpStatusCode.NoContent)
@@ -45,9 +37,3 @@ fun Route.watchLaterRoutes(watchLaterService: WatchLaterService, authService: Au
         }
     }
 }
-
-private fun String.withUrlSchemeSlashes(): String = when {
-    startsWith("https:/") && !startsWith("https://") -> "https://" + removePrefix("https:/")
-    startsWith("http:/") && !startsWith("http://") -> "http://" + removePrefix("http:/")
-    else -> this
-}
diff --git a/src/test/kotlin/dev/typetype/server/EncodedVideoUrlDeleteRoutesTest.kt b/src/test/kotlin/dev/typetype/server/EncodedVideoUrlDeleteRoutesTest.kt
new file mode 100644
index 0000000..f1b1dbc
--- /dev/null
+++ b/src/test/kotlin/dev/typetype/server/EncodedVideoUrlDeleteRoutesTest.kt
@@ -0,0 +1,94 @@
+package dev.typetype.server
+
+import dev.typetype.server.models.PlaylistItem
+import dev.typetype.server.routes.favoritesRoutes
+import dev.typetype.server.routes.playlistRoutes
+import dev.typetype.server.services.AuthService
+import dev.typetype.server.services.FavoritesService
+import dev.typetype.server.services.PlaylistService
+import io.ktor.client.request.delete
+import io.ktor.client.request.get
+import io.ktor.client.request.headers
+import io.ktor.client.request.post
+import io.ktor.client.request.setBody
+import io.ktor.client.statement.bodyAsText
+import io.ktor.http.ContentType
+import io.ktor.http.HttpHeaders
+import io.ktor.http.HttpStatusCode
+import io.ktor.serialization.kotlinx.json.json
+import io.ktor.server.application.install
+import io.ktor.server.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.server.routing.routing
+import io.ktor.server.testing.ApplicationTestBuilder
+import io.ktor.server.testing.testApplication
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertFalse
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+
+class EncodedVideoUrlDeleteRoutesTest {
+
+    private val auth = AuthService.fixed(TEST_USER_ID)
+    private val favoritesService = FavoritesService()
+    private val playlistService = PlaylistService()
+
+    companion object {
+        private const val VIDEO_URL = "https://www.youtube.com/watch?v=ZZZZZZZZZZZ"
+        private const val ENCODED_VIDEO_URL = "https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DZZZZZZZZZZZ"
+
+        @BeforeAll
+        @JvmStatic
+        fun initDb() { TestDatabase.setup() }
+    }
+
+    @BeforeEach
+    fun clean() { TestDatabase.truncateAll() }
+
+    private fun withApp(block: suspend ApplicationTestBuilder.() -> Unit) = testApplication {
+        application {
+            install(ContentNegotiation) { json() }
+            routing {
+                favoritesRoutes(favoritesService, auth)
+                playlistRoutes(playlistService, auth)
+            }
+        }
+        block()
+    }
+
+    @Test
+    fun `DELETE favorites removes encoded youtube watch url added by POST`() = withApp {
+        val post = client.post("/favorites/$ENCODED_VIDEO_URL") {
+            headers.append(HttpHeaders.Authorization, "Bearer test-jwt")
+        }
+        assertEquals(HttpStatusCode.Created, post.status)
+        assertTrue(post.bodyAsText().contains("\"videoUrl\":\"$VIDEO_URL\""))
+
+        val delete = client.delete("/favorites/$ENCODED_VIDEO_URL") {
+            headers.append(HttpHeaders.Authorization, "Bearer test-jwt")
+        }
+        assertEquals(HttpStatusCode.NoContent, delete.status)
+    }
+
+    @Test
+    fun `DELETE playlists video removes encoded youtube watch url added by POST`() = withApp {
+        val playlist = playlistService.create(TEST_USER_ID, PlaylistItem(name = "Favorites"))
+        val body = """{"url":"$VIDEO_URL","title":"test","thumbnail":"","duration":0}"""
+        val post = client.post("/playlists/${playlist.id}/videos") {
+            headers.append(HttpHeaders.Authorization, "Bearer test-jwt")
+            headers.append(HttpHeaders.ContentType, ContentType.Application.Json.toString())
+            setBody(body)
+        }
+        assertEquals(HttpStatusCode.Created, post.status)
+
+        val delete = client.delete("/playlists/${playlist.id}/videos/$ENCODED_VIDEO_URL") {
+            headers.append(HttpHeaders.Authorization, "Bearer test-jwt")
+        }
+        assertEquals(HttpStatusCode.NoContent, delete.status)
+        val afterDelete = client.get("/playlists/${playlist.id}") {
+            headers.append(HttpHeaders.Authorization, "Bearer test-jwt")
+        }.bodyAsText()
+        assertFalse(afterDelete.contains(VIDEO_URL))
+    }
+}