[] (0) Simplify window.onerror.

git-svn-id: http://svn.whatwg.org/webapps@2807 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

   <dd>
<pre class=idl>interface <dfn id=htmlbodyelement>HTMLBodyElement</dfn> : <a href=#htmlelement>HTMLElement</a> {
           attribute <a href=#function>Function</a> <a href=#handler-window-onbeforeunload title=handler-window-onbeforeunload>onbeforeunload</a>;
           attribute any     <!--      --> <a href=#handler-window-onerror title=handler-window-onerror>onerror</a>;
           attribute <a href=#function>Function</a> <a href=#handler-window-onerror title=handler-window-onerror>onerror</a>;
           attribute <a href=#function>Function</a> <a href=#handler-window-onhashchange title=handler-window-onhashchange>onhashchange</a>;
           attribute <a href=#function>Function</a> <a href=#handler-window-onload title=handler-window-onload>onload</a>;
           attribute <a href=#function>Function</a> <a href=#handler-window-onmessage title=handler-window-onmessage>onmessage</a>;
           attribute <a href=#function>Function</a> <a href=#handler-ondragover title=handler-ondragover>ondragover</a>;
           attribute <a href=#function>Function</a> <a href=#handler-ondragstart title=handler-ondragstart>ondragstart</a>;
           attribute <a href=#function>Function</a> <a href=#handler-ondrop title=handler-ondrop>ondrop</a>;
           attribute any     <!--      --> <a href=#handler-window-onerror title=handler-window-onerror>onerror</a>;
           attribute <a href=#function>Function</a> <a href=#handler-window-onerror title=handler-window-onerror>onerror</a>;
           attribute <a href=#function>Function</a> <a href=#handler-onfocus title=handler-onfocus>onfocus</a>;
           attribute <a href=#function>Function</a> <a href=#handler-window-onhashchange title=handler-window-onhashchange>onhashchange</a>;
           attribute <a href=#function>Function</a> <a href=#handler-onkeydown title=handler-onkeydown>onkeydown</a>;
  unless otherwise specified, an event handler attribute must be set
  to null.</p>

  <p class=note>Some event handler attributes allow other values and
  have other initial values, in particular the <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> event handler
  attribute on the <code><a href=#window>Window</a></code> object.</p>

  <p>Event handler attributes are exposed in one or two ways.</p>

  <p>The first way, common to all event handler attributes, is as an
  <hr>

  <p>All event handler attributes on an element, whether set to null
  or to a <code><a href=#function>Function</a></code> object<!-- or to anything else, in the
  case of 'onerror' -->, must be registered as event listeners on the
  element, as if the <code title=dom-EventTarget-addEventListenerNS>addEventListenerNS()</code>
  or to a <code><a href=#function>Function</a></code> object, must be registered as event
  listeners on the element, as if the <code title=dom-EventTarget-addEventListenerNS>addEventListenerNS()</code>
  method on the <code>Element</code> object's <code>EventTarget</code>
  interface had been invoked when the event handler attribute's
  element or object was created, with the event type (<var title=dom-event-type>type</var> argument) equal to the type
    <p>Must be invoked whenever an <code title=event-error><a href=#event-error>error</a></code> event is targeted at or bubbles
    through the object.</p>

    <p>Unlike other event handler attributes, the <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> event handler attribute can
    have any value. The initial value of <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code> must be
    <code>undefined</code>.</p>

    <p class=note>The <code title=handler-window-onerror><a href=#handler-window-onerror>onerror</a></code>
    handler is also used for <a href=#runtime-script-errors>reporting script errors</a>.</p>


   </dd>

   <dt>If the value is <code>null</code></dt>

   <dd>

    <p>The error is <i title="">handled</i>.</p>

   </dd>

   <dt>If the value is anything else</dt>
   <dt>Otherwise</dt>

   <dd>

source

@@ -11367,7 +11367,7 @@ not-slash     = %x0000-002E / %x0030-%10FFFF
   <dd>
<pre class="idl">interface <dfn>HTMLBodyElement</dfn> : <span>HTMLElement</span> {
           attribute <span>Function</span> <span title="handler-window-onbeforeunload">onbeforeunload</span>;
           attribute any     <!--      --> <span title="handler-window-onerror">onerror</span>;
           attribute <span>Function</span> <span title="handler-window-onerror">onerror</span>;
           attribute <span>Function</span> <span title="handler-window-onhashchange">onhashchange</span>;
           attribute <span>Function</span> <span title="handler-window-onload">onload</span>;
           attribute <span>Function</span> <span title="handler-window-onmessage">onmessage</span>;
           attribute <span>Function</span> <span title="handler-ondragover">ondragover</span>;
           attribute <span>Function</span> <span title="handler-ondragstart">ondragstart</span>;
           attribute <span>Function</span> <span title="handler-ondrop">ondrop</span>;
           attribute any     <!--      --> <span title="handler-window-onerror">onerror</span>;
           attribute <span>Function</span> <span title="handler-window-onerror">onerror</span>;
           attribute <span>Function</span> <span title="handler-onfocus">onfocus</span>;
           attribute <span>Function</span> <span title="handler-window-onhashchange">onhashchange</span>;
           attribute <span>Function</span> <span title="handler-onkeydown">onkeydown</span>;
  unless otherwise specified, an event handler attribute must be set
  to null.</p>

  <p class="note">Some event handler attributes allow other values and
  have other initial values, in particular the <code
  title="handler-window-onerror">onerror</code> event handler
  attribute on the <code>Window</code> object.</p>

  <p>Event handler attributes are exposed in one or two ways.</p>

  <p>The first way, common to all event handler attributes, is as an
  <hr>

  <p>All event handler attributes on an element, whether set to null
  or to a <code>Function</code> object<!-- or to anything else, in the
  case of 'onerror' -->, must be registered as event listeners on the
  element, as if the <code
  or to a <code>Function</code> object, must be registered as event
  listeners on the element, as if the <code
  title="dom-EventTarget-addEventListenerNS">addEventListenerNS()</code>
  method on the <code>Element</code> object's <code>EventTarget</code>
  interface had been invoked when the event handler attribute's
    title="event-error">error</code> event is targeted at or bubbles
    through the object.</p>

    <p>Unlike other event handler attributes, the <code
    title="handler-window-onerror">onerror</code> event handler attribute can
    have any value. The initial value of <code
    title="handler-window-onerror">onerror</code> must be
    <code>undefined</code>.</p>

    <p class="note">The <code title="handler-window-onerror">onerror</code>
    handler is also used for <a
    href="#runtime-script-errors">reporting script errors</a>.</p>

   </dd>

   <dt>If the value is <code>null</code></dt>

   <dd>

    <p>The error is <i title="">handled</i>.</p>

   </dd>

   <dt>If the value is anything else</dt>
   <dt>Otherwise</dt>

   <dd>