diff --git a/libcef/browser/content_browser_client.cc b/libcef/browser/content_browser_client.cc
index 8e7a817e9..112de4653 100644
--- a/libcef/browser/content_browser_client.cc
+++ b/libcef/browser/content_browser_client.cc
@@ -705,6 +705,7 @@ void CefContentBrowserClient::AppendExtraCommandLineSwitches(
         switches::kPpapiFlashPath,
         switches::kPpapiFlashVersion,
         switches::kUncaughtExceptionStackSize,
+        switches::kUnsafelyTreatInsecureOriginAsSecure,
     };
     command_line->CopySwitchesFrom(*browser_cmd, kSwitchNames,
                                    arraysize(kSwitchNames));
diff --git a/libcef/renderer/content_renderer_client.cc b/libcef/renderer/content_renderer_client.cc
index bdefce076..df2579d15 100644
--- a/libcef/renderer/content_renderer_client.cc
+++ b/libcef/renderer/content_renderer_client.cc
@@ -51,6 +51,7 @@
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/constants.mojom.h"
+#include "chrome/common/secure_origin_whitelist.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/chrome_content_renderer_client.h"
 #include "chrome/renderer/loadtimes_extension_bindings.h"
@@ -409,6 +410,12 @@ void CefContentRendererClient::RenderThreadStarted() {
     pdf::PepperPDFHost::SetPrintClient(pdf_print_client_.get());
   }
 
+  for (auto& origin_or_hostname_pattern :
+       secure_origin_whitelist::GetWhitelist()) {
+    blink::WebSecurityPolicy::AddOriginTrustworthyWhiteList(
+        blink::WebString::FromUTF8(origin_or_hostname_pattern));
+  }
+
   if (extensions::ExtensionsEnabled())
     extensions_renderer_client_->RenderThreadStarted();
 }