diff --git a/dom/base/Navigator.cpp b/dom/base/Navigator.cpp
index a8e7c4caf620..d6c9e12a2f78 100644
--- a/dom/base/Navigator.cpp
+++ b/dom/base/Navigator.cpp
@@ -1072,13 +1072,14 @@ Navigator::SendBeacon(const nsAString& aUrl,
     channelPolicy->SetContentSecurityPolicy(csp);
     channelPolicy->SetLoadType(nsIContentPolicy::TYPE_BEACON);
   }
+
   rv = NS_NewChannel(getter_AddRefs(channel),
                      uri,
-                     nullptr,
-                     nullptr,
-                     nullptr,
-                     nsIRequest::LOAD_NORMAL,
+                     doc,
+                     nsILoadInfo::SEC_NORMAL,
+                     nsIContentPolicy::TYPE_BEACON,
                      channelPolicy);
+
   if (NS_FAILED(rv)) {
     aRv.Throw(rv);
     return false;
diff --git a/dom/plugins/base/nsPluginHost.cpp b/dom/plugins/base/nsPluginHost.cpp
index 0a2cda477379..d8fc59477428 100644
--- a/dom/plugins/base/nsPluginHost.cpp
+++ b/dom/plugins/base/nsPluginHost.cpp
@@ -2817,11 +2817,12 @@ nsresult nsPluginHost::NewPluginURLStream(const nsString& aURL,
     owner->GetDOMElement(getter_AddRefs(element));
     owner->GetDocument(getter_AddRefs(doc));
   }
+  nsCOMPtr<nsIPrincipal> principal = doc ? doc->NodePrincipal() : nullptr;
 
   int16_t shouldLoad = nsIContentPolicy::ACCEPT;
   rv = NS_CheckContentLoadPolicy(nsIContentPolicy::TYPE_OBJECT_SUBREQUEST,
                                  url,
-                                 (doc ? doc->NodePrincipal() : nullptr),
+                                 principal,
                                  element,
                                  EmptyCString(), //mime guess
                                  nullptr,         //extra
@@ -2841,22 +2842,29 @@ nsresult nsPluginHost::NewPluginURLStream(const nsString& aURL,
   if (NS_FAILED(rv))
     return rv;
 
+  if (!principal) {
+    principal = do_CreateInstance("@mozilla.org/nullprincipal;1", &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+  // @arg loadgroup:
+  // do not add this internal plugin's channel on the
+  // load group otherwise this channel could be canceled
+  // form |nsDocShell::OnLinkClickSync| bug 166613
   nsCOMPtr<nsIChannel> channel;
-  rv = NS_NewChannel(getter_AddRefs(channel), url, nullptr,
-    nullptr, /* do not add this internal plugin's channel
-            on the load group otherwise this channel could be canceled
-            form |nsDocShell::OnLinkClickSync| bug 166613 */
-    listenerPeer);
+  rv = NS_NewChannelInternal(getter_AddRefs(channel),
+                             url,
+                             doc,
+                             principal,
+                             nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL,
+                             nsIContentPolicy::TYPE_OBJECT_SUBREQUEST,
+                             nullptr,  // aChannelPolicy
+                             nullptr,  // aLoadGroup 
+                             listenerPeer);
+
   if (NS_FAILED(rv))
     return rv;
 
   if (doc) {
-    // Set the owner of channel to the document principal...
-    nsCOMPtr<nsILoadInfo> loadInfo =
-      new LoadInfo(doc->NodePrincipal(), LoadInfo::eInheritPrincipal,
-                   LoadInfo::eNotSandboxed);
-    channel->SetLoadInfo(loadInfo);
-
     // And if it's a script allow it to execute against the
     // document's script context.
     nsCOMPtr<nsIScriptChannel> scriptChannel(do_QueryInterface(channel));
diff --git a/dom/plugins/base/nsPluginStreamListenerPeer.cpp b/dom/plugins/base/nsPluginStreamListenerPeer.cpp
index 26ed12fc8516..54f2afb92a0a 100644
--- a/dom/plugins/base/nsPluginStreamListenerPeer.cpp
+++ b/dom/plugins/base/nsPluginStreamListenerPeer.cpp
@@ -639,10 +639,33 @@ nsPluginStreamListenerPeer::RequestRead(NPByteRange* rangeList)
 
   nsresult rv = NS_OK;
 
+  nsRefPtr<nsPluginInstanceOwner> owner = mPluginInstance->GetOwner();
+  nsCOMPtr<nsIDocument> doc;
+  if (owner) {
+    rv = owner->GetDocument(getter_AddRefs(doc));
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
   nsCOMPtr<nsIInterfaceRequestor> callbacks = do_QueryReferent(mWeakPtrChannelCallbacks);
   nsCOMPtr<nsILoadGroup> loadGroup = do_QueryReferent(mWeakPtrChannelLoadGroup);
+
+  nsCOMPtr<nsIPrincipal> principal = doc ? doc->NodePrincipal() : nullptr;
+  if (!principal) {
+    principal = do_CreateInstance("@mozilla.org/nullprincipal;1", &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
   nsCOMPtr<nsIChannel> channel;
-  rv = NS_NewChannel(getter_AddRefs(channel), mURL, nullptr, loadGroup, callbacks);
+  rv = NS_NewChannelInternal(getter_AddRefs(channel),
+                             mURL,
+                             doc,
+                             principal,
+                             nsILoadInfo::SEC_NORMAL,
+                             nsIContentPolicy::TYPE_OTHER,
+                             nullptr,   // aChannelPolicy
+                             loadGroup,
+                             callbacks);
+
   if (NS_FAILED(rv))
     return rv;
 
diff --git a/dom/xml/XMLDocument.cpp b/dom/xml/XMLDocument.cpp
index 3d8afe122af0..ebd093a5f548 100644
--- a/dom/xml/XMLDocument.cpp
+++ b/dom/xml/XMLDocument.cpp
@@ -443,8 +443,17 @@ XMLDocument::Load(const nsAString& aUrl, ErrorResult& aRv)
   nsCOMPtr<nsIChannel> channel;
   // nsIRequest::LOAD_BACKGROUND prevents throbber from becoming active,
   // which in turn keeps STOP button from becoming active  
-  rv = NS_NewChannel(getter_AddRefs(channel), uri, nullptr, loadGroup, req, 
+  rv = NS_NewChannel(getter_AddRefs(channel),
+                     uri,
+                     callingDoc ? callingDoc.get() :
+                                  static_cast<nsIDocument*>(this),
+                     nsILoadInfo::SEC_NORMAL,
+                     nsIContentPolicy::TYPE_XMLHTTPREQUEST,
+                     nullptr,   // aChannelPolicy
+                     loadGroup,
+                     req,
                      nsIRequest::LOAD_BACKGROUND);
+
   if (NS_FAILED(rv)) {
     aRv.Throw(rv);
     return false;
diff --git a/dom/xml/nsXMLPrettyPrinter.cpp b/dom/xml/nsXMLPrettyPrinter.cpp
index 682a2d00c80f..5ca593d3e8d8 100644
--- a/dom/xml/nsXMLPrettyPrinter.cpp
+++ b/dom/xml/nsXMLPrettyPrinter.cpp
@@ -101,7 +101,8 @@ nsXMLPrettyPrinter::PrettyPrint(nsIDocument* aDocument,
     NS_ENSURE_SUCCESS(rv, rv);
 
     nsCOMPtr<nsIDOMDocument> xslDocument;
-    rv = nsSyncLoadService::LoadDocument(xslUri, nullptr, nullptr, true,
+    rv = nsSyncLoadService::LoadDocument(xslUri, nsContentUtils::GetSystemPrincipal(),
+                                         nullptr, true,
                                          getter_AddRefs(xslDocument));
     NS_ENSURE_SUCCESS(rv, rv);