fix

wp-content/plugins/wp-fastest-cache/js/column.js

@@ -0,0 +1,43 @@
+if(window.attachEvent) {
+    window.attachEvent('onload', wpfc_column_button_action);
+} else {
+    if(window.onload) {
+        var curronload_1 = window.onload;
+        var newonload_1 = function(evt) {
+            curronload_1(evt);
+            wpfc_column_button_action(evt);
+        };
+        window.onload = newonload_1;
+    } else {
+        window.onload = wpfc_column_button_action;
+    }
+}
+function wpfc_column_button_action(){
+	jQuery(document).ready(function(){
+        jQuery("a[id^='wpfc-clear-cache-link']").click(function(e){
+            var post_id = jQuery(e.target).attr("data-id");
+            var nonce = jQuery(e.target).attr("data-nonce");
+
+            jQuery("#wpfc-clear-cache-link-" + post_id).css('cursor', 'wait');
+
+            jQuery.ajax({
+                type: 'GET',
+                url: ajaxurl,
+                data : {"action": "wpfc_clear_cache_column", "id" : post_id, "nonce" : nonce},
+                dataType : "json",
+                cache: false, 
+                success: function(data){
+                    jQuery("#wpfc-clear-cache-link-" + post_id).css('cursor', 'pointer');
+
+                    if(typeof data.success != "undefined" && data.success == true){
+                        //
+                    }else{
+                        alert("Clear Cache Error");
+                    }
+                }
+            });
+
+            return false;
+        });
+	});
+}