Bug fixes and map page banner

webassets/js/map.js

@@ -68,8 +68,6 @@ function loadSpots() {
             // now
             startSSEConnection();
         }
-        // Start the ongoing SSE connection
-        startSSEConnection();
     });
 }
 
@@ -594,6 +592,16 @@ function setUpMap() {
     map.setView([30, 0], 3);
 }
 
+// Display the intro box, unless the user has already dismissed it once.
+function displayIntroBox() {
+    if (localStorage.getItem("map-intro-box-dismissed") == null) {
+        $("#map-intro-box").show();
+    }
+    $("#map-intro-box-dismiss").click(function () {
+        localStorage.setItem("map-intro-box-dismissed", true);
+    });
+}
+
 // Startup
 $(document).ready(function () {
     // Close SSE connection cleanly when navigating away
@@ -609,6 +617,8 @@ $(document).ready(function () {
     setUpMap();
     // Call loadOptions(), this will then trigger loading spots and setting up timers.
     loadOptions();
+    // Display intro box
+    displayIntroBox();
     // Prevent mouse scroll and touch actions in the popup menus being passed through to the map
     L.DomEvent.disableScrollPropagation(document.getElementById('settingsButtonRowMap'));
     L.DomEvent.disableClickPropagation(document.getElementById('settingsButtonRowMap'));