formatting

frontend-js/.idea/codeStyleSettings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectCodeStyleSettingsManager">
+    <option name="PER_PROJECT_SETTINGS">
+      <value />
+    </option>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </component>
+</project>
\ No newline at end of file

frontend-js/src/main/js/ServerConnector.js

@@ -1077,7 +1077,7 @@ ServerConnector.getImageDownloadUrl = function (params) {
     token: params.token,
     polygonString: params.polygonString,
     handlerClass: params.handlerClass,
-    backgroundOverlayId: params.backgroundOverlayId,
+    backgroundOverlayId: params.backgroundOverlayId,  
     zoomLevel: params.zoomLevel,
     overlayIds: this.idsToString(params.overlayIds),
   };