fix($http): don't covert 0 status codes to 404 for non-file protocols

PR #5547 introduced conversion of all 0 status codes to 404 for cases
where no response was recieved (previously this was done for the
file:// protocol only). But this mechanism is too eager and
masks legitimate cases where status 0 should be returned. This commits
reverts to the previous mechanism of handling 0 status code for the
file:// protocol (converting 0 to 404) while retaining the returned
status code 0 for all the protocols other than file://

Fixes #6074
Fixes #6155

1 files changed, 24 insertions, 6 deletions

diff --git a/test/ng/httpBackendSpec.js b/test/ng/httpBackendSpec.js
index 2a3f6012..5c9cbf58 100644
--- a/test/ng/httpBackendSpec.js
+++ b/test/ng/httpBackendSpec.js
@@ -456,27 +456,45 @@ describe('$httpBackend', function() {
     }
 
 
-    it('should convert 0 to 200 if content', function() {
+    it('should convert 0 to 200 if content and file protocol', function() {
       $backend = createHttpBackend($browser, createMockXhr);
 
-      $backend('GET', 'someProtocol:///whatever/index.html', null, callback);
+      $backend('GET', 'file:///whatever/index.html', null, callback);
       respond(0, 'SOME CONTENT');
 
       expect(callback).toHaveBeenCalled();
       expect(callback.mostRecentCall.args[0]).toBe(200);
     });
 
-
-    it('should convert 0 to 404 if no content', function() {
+    it('should convert 0 to 200 if content for protocols other than file', function() {
       $backend = createHttpBackend($browser, createMockXhr);
 
       $backend('GET', 'someProtocol:///whatever/index.html', null, callback);
+      respond(0, 'SOME CONTENT');
+
+      expect(callback).toHaveBeenCalled();
+      expect(callback.mostRecentCall.args[0]).toBe(200);
+    });
+
+    it('should convert 0 to 404 if no content and file protocol', function() {
+      $backend = createHttpBackend($browser, createMockXhr);
+
+      $backend('GET', 'file:///whatever/index.html', null, callback);
       respond(0, '');
 
       expect(callback).toHaveBeenCalled();
       expect(callback.mostRecentCall.args[0]).toBe(404);
     });
 
+    it('should not convert 0 to 404 if no content for protocols other than file', function() {
+      $backend = createHttpBackend($browser, createMockXhr);
+
+      $backend('GET', 'someProtocol:///whatever/index.html', null, callback);
+      respond(0, '');
+
+      expect(callback).toHaveBeenCalled();
+      expect(callback.mostRecentCall.args[0]).toBe(0);
+    });
 
     it('should convert 0 to 404 if no content - relative url', function() {
       var originalUrlParsingNode = urlParsingNode;
@@ -486,10 +504,10 @@ describe('$httpBackend', function() {
         hash : "#/C:/",
         host : "",
         hostname : "",
-        href : "someProtocol:///C:/base#!/C:/foo",
+        href : "file:///C:/base#!/C:/foo",
         pathname : "/C:/foo",
         port : "",
-        protocol : "someProtocol:",
+        protocol : "file:",
         search : "",
         setAttribute: angular.noop
       };