Disable the validation badge for those who do not want it (#5994)

* disabled on string values: "127.0.0.1", "localhost", "none"

src/core/components/online-validator-badge.jsx

@@ -2,7 +2,7 @@ import React from "react"
 import URL from "url-parse"
 
 import PropTypes from "prop-types"
-import { sanitizeUrl } from "core/utils"
+import { sanitizeUrl, requiresValidationURL } from "core/utils"
 import win from "core/window"
 
 export default class OnlineValidatorBadge extends React.Component {
@@ -48,8 +48,8 @@ export default class OnlineValidatorBadge extends React.Component {
 
         if ( typeof spec === "object" && Object.keys(spec).length) return null
 
-        if (!this.state.url || !this.state.validatorUrl || this.state.url.indexOf("localhost") >= 0
-                            || this.state.url.indexOf("127.0.0.1") >= 0) {
+        if (!this.state.url || !requiresValidationURL(this.state.validatorUrl)
+                            || !requiresValidationURL(this.state.url)) {
           return null
         }
 

src/core/utils.js

@@ -800,6 +800,15 @@ export function sanitizeUrl(url) {
   return braintreeSanitizeUrl(url)
 }
 
+
+export function requiresValidationURL(uri) {
+  if (!uri || uri.indexOf("localhost") >= 0 || uri.indexOf("127.0.0.1") >= 0 || uri === "none") {
+    return false
+  }
+  return true
+}
+
+
 export function getAcceptControllingResponse(responses) {
   if(!Im.OrderedMap.isOrderedMap(responses)) {
     // wrong type!