diff --git a/src/UrlParams.test.ts b/src/UrlParams.test.ts
index dce46754..b65638e0 100644
--- a/src/UrlParams.test.ts
+++ b/src/UrlParams.test.ts
@@ -243,4 +243,16 @@ describe("UrlParams", () => {
       expect(getUrlParams("?intent=join_existing").skipLobby).toBe(false);
     });
   });
+  describe("header", () => {
+    it("uses header if provided", () => {
+      expect(getUrlParams("?header=app_bar&hideHeader=true").header).toBe(
+        "app_bar",
+      );
+      expect(getUrlParams("?header=none&hideHeader=false").header).toBe("none");
+    });
+    it("converts hideHeader to the correct header value", () => {
+      expect(getUrlParams("?hideHeader=true").header).toBe("none");
+      expect(getUrlParams("?hideHeader=false").header).toBe("standard");
+    });
+  });
 });
diff --git a/src/UrlParams.ts b/src/UrlParams.ts
index 35d19868..9f89fd47 100644
--- a/src/UrlParams.ts
+++ b/src/UrlParams.ts
@@ -267,12 +267,13 @@ export const getUrlParams = (
     intent = UserIntent.Unknown;
   }
 
-  // Check hideHeader for backwards compatibility
-  let header = parser.getFlagParam("hideHeader")
-    ? HeaderStyle.None
-    : parser.getParam("header");
-  if (header !== HeaderStyle.None && header !== HeaderStyle.AppBar)
-    header = HeaderStyle.Standard;
+  // Check hideHeader for backwards compatibility. If header is set, hideHeader
+  // is ignored.
+  const header =
+    parser.getParam("header") ??
+    (parser.getFlagParam("hideHeader")
+      ? HeaderStyle.None
+      : HeaderStyle.Standard);
 
   const widgetId = parser.getParam("widgetId");
   const parentUrl = parser.getParam("parentUrl");