web worker

themes/yilia/source-src/css/grid.scss

@@ -22,7 +22,7 @@ html, body, #container {
 	min-height:100%;
   scroll-behavior: smooth;
 	-webkit-overflow-scrolling: touch;
-	background: $colorBodyBg url(/api/common/randomBg) no-repeat;
+	background: $colorBodyBg url(/api/common/randomBg?label=background) no-repeat;
 	background-size: contain;
 	background-position: right;
 	// overflow-scrolling: touch;

themes/yilia/source-src/css/left.scss

@@ -1,5 +1,5 @@
 .left-col {
-  background: $colorBg url(./img/left_bg.png) no-repeat;
+  background: $colorBg url(/api/common/randomBg?label=banner) no-repeat;
 	background-size: cover;
 	background-position: top;
 	width: 300px;