diff --git a/index.html b/index.html
index 66b9afc..1296895 100644
--- a/index.html
+++ b/index.html
@@ -2766,7 +2766,13 @@
Writing or pushing content
|ndef|.
-
+ "`absolute-url`"
+
@@ -3363,6 +3369,47 @@ Writing or pushing content
+
+ Mapping absolute-URL to NDEF
+
+ To
map absolute-URL to NDEF given a |record:NDEFRecordInit|
+ and |ndef|, run these steps:
+
+ -
+ If |record|'s mediaType is not `undefined`,
+ [= exception/throw =] a {{TypeError}} and abort these steps.
+
+ -
+ If |record|'s data is not a {{DOMString}},
+ [= exception/throw =] a {{TypeError}} and abort these steps.
+
+ -
+ If the result of parsing |record|'s
+ data is failure, [= exception/throw =] a
+ {{SyntaxError}} and abort these steps.
+
+ -
+ Set |arrayBuffer| to |record|'s data.
+
+ -
+ Set |data:byte sequence| to |arrayBuffer|.[[\ArrayBufferData]].
+
+ -
+ Set |ndef|'s TNF field to `3` ([=absolute-URL record=]).
+
+ -
+ Set |ndef|'s TYPE field to |data|.
+
+ -
+ Set |ndef|'s PAYLOAD LENGTH field to `0` and omit PAYLOAD
+ field.
+
+ -
+ Return |ndef|.
+
+
+
+