--- a/preview.html	Fri Nov 08 04:09:22 2013 +0900
+++ b/preview.html	Fri Nov 08 04:13:44 2013 +0900
@@ -780,19 +780,10 @@
 				</dd>
 
 				<dt>attribute <a>ByteStreamReadType</a> readType</dt>
-				<dd>
-					<p>
-						Returns the type of the last read operation taken on the <a>ByteStream</a>.
-						On getting, conforming user agents must return the type of the last read operation. If no read operation has taken place and the <code>readType</code> was not set, then return the empty string. This can be set to the empty string (default), "<code>arraybuffer</code>", "<code>blob</code>" and "<code>text</code>" to change the type of the read operation.
-					</p>
-				</dd>
+				<dd></dd>
 
 				<dt>attribute DOMString readEncoding</dt>
-				<dd>
-					<p>
-						A <code>DOMString</code> that represents the label of an encoding [[!EncodingDetermination]]. If set, it will be used as part of the encoding determination used when processing a <code>read</code> call. If not set, it will return the empty string.
-					</p>
-				</dd>
+				<dd></dd>
 
 				<dt>Promise read()</dt>
 				<dd>