--- a/mobile/android/tests/browser/robocop/src/org/mozilla/gecko/tests/UITest.java
+++ b/mobile/android/tests/browser/robocop/src/org/mozilla/gecko/tests/UITest.java
@@ -137,17 +137,21 @@ abstract class UITest extends BaseRoboco
     }
 
     @Override
     public String getAbsoluteIpUrl(final String url) {
         return getAbsoluteUrl(mBaseIpUrl, url);
     }
 
     private String getAbsoluteUrl(final String baseUrl, final String url) {
-        return baseUrl + "/" + url.replaceAll("(^/)", "");
+        if (!url.startsWith(baseUrl)) {
+            return baseUrl + "/" + url.replaceAll("(^/)", "");
+        }
+
+        return url;
     }
 
     /**
      * Throws an Exception. Called from overridden JUnit methods to ensure JUnit assertions
      * are not accidentally used over AssertionHelper assertions (the latter of which contains
      * additional logging facilities for use in our test harnesses).
      */
     private static void junit() {