From 993d73762caaf02e2d5045fb9e60345e2a8bf6ac Mon Sep 17 00:00:00 2001
From: Ian Clelland <iclelland@chromium.org>
Date: Mon, 21 Jul 2014 09:20:49 -0400
Subject: [PATCH] Handle unsupported protocol errors in webview better

---
 .../org/apache/cordova/CordovaWebViewClient.java   | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/framework/src/org/apache/cordova/CordovaWebViewClient.java b/framework/src/org/apache/cordova/CordovaWebViewClient.java
index a2cf0bed..f65a9760 100755
--- a/framework/src/org/apache/cordova/CordovaWebViewClient.java
+++ b/framework/src/org/apache/cordova/CordovaWebViewClient.java
@@ -231,7 +231,19 @@ public class CordovaWebViewClient extends WebViewClient {
         // Clear timeout flag
         this.appView.loadUrlTimeout++;
 
-        // Handle error
+        // If this is a "Protocol Not Supported" error, then revert to the previous
+        // page. If there was no previous page, then punt. The application's config
+        // is likely incorrect (start page set to sms: or something like that)
+        if (errorCode == WebViewClient.ERROR_UNSUPPORTED_SCHEME) {
+            if (view.canGoBack()) {
+                view.goBack();
+                return;
+            } else {
+                super.onReceivedError(view, errorCode, description, failingUrl);
+            }
+        }
+
+        // Handle other errors by passing them to the webview in JS
         JSONObject data = new JSONObject();
         try {
             data.put("errorCode", errorCode);