Fix problem with parsing & assigning Promise resolution value. (WICG#854

)

spec.bs

@@ -916,24 +916,16 @@ To <dfn>validate and convert auction ad config</dfn> given an {{AuctionAdConfig}
     |config|["{{AuctionAdConfig/auctionSignals}}"].
   1. [=Handle an input promise in configuration=] given |auctionConfig| and |auctionConfig|'s
     [=auction config/auction signals=]:
-    * To parse the value |result|:
-      1. Let |auctionSignalsJSON| be the result of
-        [=serializing a JavaScript value to a JSON string=], given |result|.
-      1. Set |auctionConfig|'s [=auction config/auction signals=] to |auctionSignalsJSON|.
-      1. Set |auctionConfig|'s [=auction config/config idl=]["{{AuctionAdConfig/auctionSignals}}"]
-        to |result|.
-    * To handle an error:
-      1. Set |auctionConfig|'s [=auction config/auction signals=] to failure.
-      1. Set |auctionConfig|'s [=auction config/config idl=]["{{AuctionAdConfig/auctionSignals}}"]
-        to {{undefined}}.
+    * To parse the value |result|, set |auctionConfig|'s [=auction config/auction signals=] to the
+      result of [=serializing a JavaScript value to a JSON string=].
+    * To handle an error, set |auctionConfig|'s [=auction config/auction signals=] to failure.
 1. If |config|["{{AuctionAdConfig/sellerSignals}}"] [=map/exists=]:
   1. Set |auctionConfig|'s [=auction config/seller signals=] to
     |config|["{{AuctionAdConfig/sellerSignals}}"].
   1. [=Handle an input promise in configuration=] given |auctionConfig| and |auctionConfig|'s
     [=auction config/seller signals=]:
-    * To parse the value |result|:
-      1. Set |auctionConfig|'s [=auction config/seller signals=] to the result of
-        [=serializing a JavaScript value to a JSON string=], given |result|.
+    * To parse the value |result|, set |auctionConfig|'s [=auction config/seller signals=] to the
+      result of [=serializing a JavaScript value to a JSON string=], given |result|.
     * To handle an error, set |auctionConfig|'s [=auction config/seller signals=] to failure.
 1. If |config|["{{AuctionAdConfig/directFromSellerSignals}}"] [=map/exists=]:
   1. TODO: The receiving end of this isn't specified yet, so there is no place to put the computed value.