diff --git a/src/util/mapbox.js b/src/util/mapbox.js
index f4197a5d817..0552a1ba6ef 100644
--- a/src/util/mapbox.js
+++ b/src/util/mapbox.js
@@ -106,7 +106,7 @@ export class RequestManager {
             this._createSkuToken();
         }
 
-        if (tileURL && !isMapboxURL(tileURL) && !isMapboxHTTPURL(tileURL)) return tileURL;
+        if (tileURL && !isMapboxURL(tileURL)) return tileURL;
 
         const urlObject = parseUrl(tileURL);
         const imageExtensionRe = /(\.(png|jpg)\d*)(?=$)/;