Form submission with blank target is broken.

ios/web/web_state/ui/crw_web_controller.mm

Index: ios/web/web_state/ui/crw_web_controller.mm
diff --git a/ios/web/web_state/ui/crw_web_controller.mm b/ios/web/web_state/ui/crw_web_controller.mm
index bcc7afbd77b985b35613968e319d9c9ead935241..0b97c48cf2dd540d296852ce963998b8717cf60f 100644
--- a/ios/web/web_state/ui/crw_web_controller.mm
+++ b/ios/web/web_state/ui/crw_web_controller.mm
@@ -2558,17 +2558,6 @@ const NSTimeInterval kSnapshotOverlayTransition = 0.5;
     DLOG(WARNING) << "JS message parameter not found: href";
     return NO;
   }
-  const GURL targetURL(href);
-  const GURL currentURL([self currentURL]);
-  bool targetsFrame = false;
-  message->GetBoolean("targetsFrame", &targetsFrame);

[Eugene But (OOO till 7-30), 2017/03/28 18:47:42]

Do we also need to remove targetsFrame from JavaScript?

[michaeldo, 2017/03/29 22:53:37]

Good call, I removed it and updated description. PTAL.

-  if (!targetsFrame && web::UrlHasWebScheme(targetURL)) {
-    // The referrer is not known yet, and will be updated later.
-    const web::Referrer emptyReferrer;
-    [self registerLoadRequest:targetURL
-                     referrer:emptyReferrer
-                   transition:ui::PAGE_TRANSITION_FORM_SUBMIT];
-  }
   std::string formName;
   message->GetString("formName", &formName);
   base::scoped_nsobject<NSSet> observers([_observers copy]);