--- a/dom/media/mediasource/MediaSource.cpp
+++ b/dom/media/mediasource/MediaSource.cpp
@@ -336,29 +336,24 @@ MediaSource::Enabled(JSContext* cx, JSOb
 
   // Check whether it's enabled everywhere or just YouTube.
   bool restrict = Preferences::GetBool("media.mediasource.youtubeonly", false);
   if (!restrict) {
     return true;
   }
 
   // We want to restrict to YouTube only.
-  // We define that as the origin being https://*.youtube.com.
-  // We also support https://*.youtube-nocookie.com.
+  // We define that as the origin being *.youtube.com.
+  // We also support *.youtube-nocookie.com
   nsIPrincipal* principal = nsContentUtils::ObjectPrincipal(global);
   nsCOMPtr<nsIURI> uri;
   if (NS_FAILED(principal->GetURI(getter_AddRefs(uri))) || !uri) {
     return false;
   }
 
-  bool isHttps = false;
-  if (NS_FAILED(uri->SchemeIs("https", &isHttps)) || !isHttps) {
-    return false;
-  }
-
   nsCOMPtr<nsIEffectiveTLDService> tldServ =
     do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID);
   NS_ENSURE_TRUE(tldServ, false);
 
   nsAutoCString eTLDplusOne;
    if (NS_FAILED(tldServ->GetBaseDomain(uri, 0, eTLDplusOne))) {
      return false;
    }