diff --git a/platform/ios/vendor/mapbox-events-ios b/platform/ios/vendor/mapbox-events-ios
index 7a74b459d..6a1b9aaeb 160000
--- a/platform/ios/vendor/mapbox-events-ios
+++ b/platform/ios/vendor/mapbox-events-ios
@@ -1 +1 @@
-Subproject commit 7a74b459d7cd868c7186e9e3f07079390c9269d5
+Subproject commit 6a1b9aaeb21437ac8cbb4b9d3ca108c00318bb58
diff --git a/src/mbgl/util/mapbox.cpp b/src/mbgl/util/mapbox.cpp
index cdd51a293..64e4adf28 100644
--- a/src/mbgl/util/mapbox.cpp
+++ b/src/mbgl/util/mapbox.cpp
@@ -110,7 +110,9 @@ std::string normalizeTileURL(const std::string& baseURL,
     }
 
     const auto tpl = baseURL + "/v4{path}?access_token=" + accessToken;
-    return transformURL(tpl, str, url);
+    std::string final_url = transformURL(tpl, str, url);
+    std::clog << "tileurl: " << final_url << "\n";
+    return final_url;
 }
 
 std::string
@@ -176,6 +178,7 @@ void canonicalizeTileset(Tileset& tileset, const std::string& sourceURL, style::
     if (isMapboxURL(sourceURL)) {
         for (auto& url : tileset.tiles) {
             url = canonicalizeTileURL(url, type, tileSize);
+            std::clog << "source: " << url << "\n";
         }
     }
 }