Fix loader

sdkjs-plugins/v1/loader.css

@@ -1,3 +1,15 @@
+@keyframes rotation {
+    from {
+        transform: rotate(0deg);
+    }
+
+    to {
+        transform: rotate(360deg);
+    }
+}
+.asc-loader-container {
+    position: relative;
+}
 .asc-plugin-loader {
     position: absolute;
     left: 50%;
@@ -17,8 +29,9 @@
     float: left;
     margin-top: -1px;
 
+
     animation-duration: .8s;
-    animation-name: slidein;
+    animation-name: rotation;
     animation-iteration-count: infinite;
     animation-timing-function: linear;
 }
@@ -26,4 +39,5 @@
 .asc-plugin-loader .asc-loader-title {
     font-size: 13px;
     padding-left: 25px;
-}
+}
+

sdkjs-plugins/v1/loader.js

@@ -3,6 +3,7 @@
  * var loader = showLoader(document.getElementById("parent-id"))
  * loader.remove()
  *
+ * parent must have position: relative
  */
 showLoader = function (parent, text) {
     var loader = $('<div class="asc-plugin-loader" ><div class="asc-loader-image"></div><div class="asc-loader-title">' + (text || 'Loading') + '</div></div>');