1 files changed, 5 insertions, 4 deletions
diff --git a/dom/webidl/RTCSessionDescription.webidl b/dom/webidl/RTCSessionDescription.webidl
index 07bfb36f02..4dafe01e1b 100644
--- a/dom/webidl/RTCSessionDescription.webidl
+++ b/dom/webidl/RTCSessionDescription.webidl
@@ -15,16 +15,17 @@ enum RTCSdpType {
 };
 
 dictionary RTCSessionDescriptionInit {
-  RTCSdpType? type = null;
-  DOMString? sdp = "";
+  required RTCSdpType type;
+  DOMString sdp = "";
 };
 
 [Pref="media.peerconnection.enabled",
  JSImplementation="@mozilla.org/dom/rtcsessiondescription;1",
  Constructor(optional RTCSessionDescriptionInit descriptionInitDict)]
 interface RTCSessionDescription {
-  attribute RTCSdpType? type;
-  attribute DOMString? sdp;
+  // These should be readonly, but writing causes deprecation warnings for a bit
+  attribute RTCSdpType type;
+  attribute DOMString sdp;
 
   jsonifier;
 };