Set opener to null when opening original URL with JavaScript.

ui/static/js.go

@@ -1,11 +1,11 @@
 // Code generated by go generate; DO NOT EDIT.
-// 2018-06-19 22:56:40.308801738 -0700 PDT m=+0.030613858
+// 2018-06-28 02:11:57.050292961 -0400 EDT m=+0.005178557
 
 package static
 
 var Javascript = map[string]string{
 	"app": `(function(){'use strict';class DomHelper{static isVisible(element){return element.offsetParent!==null;}
-static openNewTab(url){let win=window.open(url,"_blank");win.focus();}
+static openNewTab(url){let win=window.open("");win.opener=null;win.location=url;win.focus();}
 static scrollPageTo(element){let windowScrollPosition=window.pageYOffset;let windowHeight=document.documentElement.clientHeight;let viewportPosition=windowScrollPosition+windowHeight;let itemBottomPosition=element.offsetTop+element.offsetHeight;if(viewportPosition-itemBottomPosition<0||viewportPosition-element.offsetTop>windowHeight){window.scrollTo(0,element.offsetTop-10);}}
 static getVisibleElements(selector){let elements=document.querySelectorAll(selector);let result=[];for(let i=0;i<elements.length;i++){if(this.isVisible(elements[i])){result.push(elements[i]);}}
 return result;}
@@ -92,5 +92,5 @@ document.addEventListener("DOMContentLoaded",function(){FormHandler.handleSubmit
 }
 
 var JavascriptChecksums = map[string]string{
-	"app": "69dd98768624d2d683b6ba27f558b06e16451e63b460e091dafd7601ca29dad4",
+	"app": "803826d0f7d801ed07437712668d00247112b6f85eae5b1b46f3ac9f95fe2b18",
 }

ui/static/js/app.js

@@ -8,7 +8,9 @@ class DomHelper {
     }
 
     static openNewTab(url) {
-        let win = window.open(url, "_blank");
+        let win = window.open("");
+        win.opener = null;
+        win.location = url;
         win.focus();
     }