From 67ed3785270bf2ce4f9a69250353cfacb1a9e23e Mon Sep 17 00:00:00 2001
From: Brandon <JustBrandonT@gmail.com>
Date: Tue, 24 Mar 2020 15:38:53 -0400
Subject: [PATCH] Desktop disabled data URI schemes.

---
 ...rViewController+WKNavigationDelegate.swift | 31 +++----------------
 1 file changed, 4 insertions(+), 27 deletions(-)

diff --git a/Client/Frontend/Browser/BrowserViewController/BrowserViewController+WKNavigationDelegate.swift b/Client/Frontend/Browser/BrowserViewController/BrowserViewController+WKNavigationDelegate.swift
index 40f4c16ce95..7c26c5d59b7 100644
--- a/Client/Frontend/Browser/BrowserViewController/BrowserViewController+WKNavigationDelegate.swift
+++ b/Client/Frontend/Browser/BrowserViewController/BrowserViewController+WKNavigationDelegate.swift
@@ -260,33 +260,10 @@ extension BrowserViewController: WKNavigationDelegate {
             }
             
             // Prevents synthetically activated links such as: CVE-2017-7089
-            if ["data", "blob", "file"].contains(url.scheme) {
-                if let clickType = navigationAction.value(forKey: "syntheticClickType") as? Int {
-                    //A click is synthetic if its value is 0 (aka WKSyntheticClickTypeNoTap).
-                    /*switch (syntheticClickType) {
-                    case WebKit::WebMouseEvent::OneFingerTap:
-                        return WKSyntheticClickTypeOneFingerTap;
-                    case WebKit::WebMouseEvent::TwoFingerTap:
-                        return WKSyntheticClickTypeTwoFingerTap;
-                    }*/
-                    if clickType == 0 {
-                        decisionHandler(.cancel)
-                        return
-                    }
-                }
-                
-                //Fallback.. Asks the user whether or not the url should be opened.. but only for `data`
-                if navigationAction.navigationType == .linkActivated && url.scheme == "data" {
-                    handleExternalURL(url) { didOpenURL in
-                        if !didOpenURL {
-                            let alert = UIAlertController(title: Strings.unableToOpenURLErrorTitle, message: Strings.unableToOpenURLError, preferredStyle: .alert)
-                            alert.addAction(UIAlertAction(title: Strings.OKString, style: .default, handler: nil))
-                            self.present(alert, animated: true, completion: nil)
-                        }
-                    }
-                    decisionHandler(.cancel)
-                    return
-                }
+            //Follow desktop
+            if url.scheme == "data" {
+                decisionHandler(.cancel)
+                return
             }
             
             decisionHandler(.allow)