[] (0) If you find a declaration while decoding as UTF-16, then ignor…

…e it. It can only be correct if it is not giving a different encoding, in which case it's not useful anyway. (credit: kp) git-svn-id: http://svn.whatwg.org/webapps@3205 340c8d12-0b0e-0410-8428-c7bf67bfef74
whatwg · Jun 6, 2009 · 20f6409 · 20f6409
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diff --git a/index b/index
@@ -59751,6 +59751,12 @@ interface <dfn id=messageport>MessagePort</dfn> {
    pass found that the encoding sniffing algorithm described in the
    earlier section failed to find the right encoding.</li>
 
+   <li>If the encoding that is already being used to interpret the
+   input stream is a UTF-16 encoding, then set the <a href=#concept-encoding-confidence title=concept-encoding-confidence>confidence</a> to
+   <i>certain</i> and abort these steps. The new encoding is ignored;
+   if it was anything but the same encoding, then it would be clearly
+   incorrect.</li>
+
    <li>If the new encoding is a UTF-16 encoding, change it to
    UTF-8.</li>
 

diff --git a/source b/source
@@ -73427,6 +73427,13 @@ interface <dfn>MessagePort</dfn> {
    pass found that the encoding sniffing algorithm described in the
    earlier section failed to find the right encoding.</li>
 
+   <li>If the encoding that is already being used to interpret the
+   input stream is a UTF-16 encoding, then set the <span
+   title="concept-encoding-confidence">confidence</span> to
+   <i>certain</i> and abort these steps. The new encoding is ignored;
+   if it was anything but the same encoding, then it would be clearly
+   incorrect.</li>
+
    <li>If the new encoding is a UTF-16 encoding, change it to
    UTF-8.</li>