Meta: fix breakage due to WebSockets

This will be cleaned up in #1366.

Author: annevk

fetch.bs

@@ -35,6 +35,11 @@ urlPrefix:https://w3c.github.io/hr-time/#;spec:hr-time
     type:typedef;url:dom-domhighrestimestamp;text:DOMHighResTimeStamp
 </pre>
 
+<pre class=link-defaults>
+spec:websockets; type:interface; text:WebSocket
+spec:websockets; type:attribute; text:bufferedAmount; for:WebSocket
+</pre>
+
 <pre class=biblio>
 {
     "HTTP": {