Allow about pages to reload and clone

fix brave#2826

Auditors: @bridiver, @bbondy

Test Plan:
1. Generate any error pages(connection error, cert error, ...)
2. Clone/Reload should work properly

1. Go to any about pages
2. Clone/Reload should work properly

js/components/frame.js

@@ -23,7 +23,7 @@ const debounce = require('../lib/debounce')
 const getSetting = require('../settings').getSetting
 const config = require('../constants/config')
 const settings = require('../constants/settings')
-const {aboutUrls, isSourceAboutUrl, isTargetAboutUrl, getTargetAboutUrl, getBaseUrl, isNavigatableAboutPage} = require('../lib/appUrlUtil')
+const {aboutUrls, isSourceAboutUrl, isTargetAboutUrl, getTargetAboutUrl, getBaseUrl} = require('../lib/appUrlUtil')
 const {isFrameError} = require('../../app/common/lib/httpUtil')
 const locale = require('../l10n')
 const appConfig = require('../constants/appConfig')
@@ -404,9 +404,6 @@ class Frame extends ImmutableComponent {
   }
 
   clone (args) {
-    if (!isNavigatableAboutPage(getBaseUrl(this.props.location))) {
-      return
-    }
     const newGuest = this.webview.clone()
     const newGuestInstanceId = newGuest.getWebPreferences().guestInstanceId
     let cloneAction
@@ -427,23 +424,17 @@ class Frame extends ImmutableComponent {
         this.webview.stop()
         break
       case 'reload':
-        if (this.isAboutPage()) {
-          break
-        }
         // Ensure that the webview thinks we're on the same location as the browser does.
         // This can happen for pages which don't load properly.
         // Some examples are basic http auth and bookmarklets.
         // In this case both the user display and the user think they're on this.props.location.
-        if (this.webview.getURL() !== this.props.location) {
+        if (this.webview.getURL() !== this.props.location && !this.isAboutPage()) {
           this.webview.loadURL(this.props.location)
         } else {
           this.webview.reload()
         }
         break
       case 'clean-reload':
-        if (this.isAboutPage()) {
-          break
-        }
         this.webview.reloadIgnoringCache()
         break
       case 'clone':

js/state/frameStateUtil.js

@@ -246,6 +246,7 @@ function cloneFrame (frameOpts, guestInstanceId) {
   clone.location = 'about:blank'
   clone.src = 'about:blank'
   clone.parentFrameKey = frameOpts.key
+  clone.aboutDetails = frameOpts.aboutDetails
   return clone
 }