Fix zoom from cowebsite changes

front/src/WebRtc/CoWebsiteManager.ts

@@ -361,6 +361,8 @@ class CoWebsiteManager {
             oldSlot.container.style.display = "none";
         }
 
+        this.displayCowebsiteContainer();
+
         newSlot.container.style.display = "block";
 
         coWebsite.iframe.classList.remove("pixel");
@@ -368,6 +370,14 @@ class CoWebsiteManager {
         this.resizeAllIframes();
     }
 
+    private displayCowebsiteContainer() {
+        if (this.coWebsites.find((cowebsite) => cowebsite.position > 0)) {
+            this.cowebsiteContainerDom.style.display = "block";
+        } else {
+            this.cowebsiteContainerDom.style.display = "none";
+        }
+    }
+
     private moveLeftPreviousCoWebsite(coWebsite: CoWebsite, newPosition: number) {
         const nextCoWebsite = this.getCoWebsiteByPosition(coWebsite.position + 1);
 
@@ -422,6 +432,8 @@ class CoWebsiteManager {
             this.moveLeftPreviousCoWebsite(previousCoWebsite, coWebsite.position);
         }
 
+        this.displayCowebsiteContainer();
+
         coWebsite.icon.remove();
         coWebsite.iframe.remove();
     }

front/style/cowebsite.scss

@@ -65,6 +65,7 @@
 
   &-container {
     position: absolute;
+    display: none;
     height: 100%;
     width: 100%;