<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>16731</bug_id>
          
          <creation_ts>2008-01-04 08:37:20 -0800</creation_ts>
          <short_desc>Incorrect node type for whitespace when setting innerHTML in an XHTML document</short_desc>
          <delta_ts>2019-02-06 09:02:54 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>DOM</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Mac</rep_platform>
          <op_sys>OS X 10.5</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Max Barel">max</reporter>
          <assigned_to name="Alexey Proskuryakov">ap</assigned_to>
          <cc>ap</cc>
    
    <cc>cdumez</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>66198</commentid>
    <comment_count>0</comment_count>
    <who name="Max Barel">max</who>
    <bug_when>2008-01-04 08:37:20 -0800</bug_when>
    <thetext>I&apos;m reporting this as a bug on suggestion by Darin Adler on the dev mailing list. Here is the related thread where it was first mentioned:
http://lists.webkit.org/pipermail/webkit-dev/2008-January/003082.html

Summary:
When injecting HTML elements into the DOM of a XHTML 1.0 strict document served as application/xhtml+xml, the web inspector shows unexpected #cdata-section between injected elements, IF the injection is made by altering the innerHTML attribute. While reducing a test case to post here, it seems that theses sections are inserted for linefeed and/or tab sequences. They should be #text.

Injecting into xml doc using innerHTML is not the right way, so I wouldn&apos;t report it if not suggested to.

Worth noting also, when using XMLHttpRequest to get an xhtml chunk, served as application/xhtml+xml and injected from responseXML using DOM methods, injected elements are not valid HTML elements if there is no explicit namespace through xmlns attribute on the container element.

Test case:
XHTML base file (served as application/xhtml+xml):
&lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML 1.0 Strict//EN&quot;
	&quot;http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd&quot;&gt;

&lt;html xmlns=&quot;http://www.w3.org/1999/xhtml&quot; xml:lang=&quot;en&quot; lang=&quot;en&quot;&gt;
&lt;head&gt;
	&lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; charset=utf-8&quot;/&gt;
	&lt;script type=&quot;text/javascript&quot; charset=&quot;UTF-8&quot; src=&quot;dom_injection.js&quot;&gt;&lt;/script&gt;
	&lt;title&gt;xhtml DOM injection&lt;/title&gt;
&lt;/head&gt;

&lt;body onload=&quot;inject();&quot;&gt;
	&lt;p id=&apos;p_static&apos;&gt;This pararagraph is static in xhtml file.
		&lt;a href=&quot;#p_static&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;
	&lt;/p&gt;
	&lt;div id=&quot;target&quot;&gt;&lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;
injected xhtml (no namespace):
	
&lt;p id=&quot;p_inj&quot;&gt;This paragraph is ajax injected with no NS.
	&lt;a href=&quot;#p_inj&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;

&lt;/p&gt;

injected xhtml (namespace):
	
&lt;p xmlns=&quot;http://www.w3.org/1999/xhtml&quot; id=&quot;p_inj_NS&quot;&gt;This paragraph is ajax injected with NS.

	&lt;a href=&quot;#p_inj_NS&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;

&lt;/p&gt;

These two injected files are served either as application/xhtml+xml or text/html depending of the file extension used to get them.

The javacript test file:

function inject() {
	var target = document.getElementById(&apos;target&apos;);
	//no #cdata, valid elements, innerHTML injection
	// target.innerHTML += &apos;&lt;p id=&quot;p_inj_1&quot;&gt;This paragraph is injected trough innerHTML with no NS. &lt;a href=&quot;#p_inj_1&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;&lt;/p&gt;&apos;;
	//#cdata, valid elements, innerHTML injection
	// target.innerHTML += &apos;\n&lt;p id=&quot;p_inj_1&quot;&gt;This paragraph is injected trough innerHTML with no NS. &lt;a href=&quot;#p_inj_1&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;&lt;/p&gt;&apos;;
	//no #cdata, valid elements, innerHTML injection
	// target.innerHTML += &apos;&lt;p xmlns=&quot;http://www.w3.org/1999/xhtml&quot; id=&quot;p_inj_NS_1&quot;&gt;This paragraph is injected trough innerHTML with NS.\n&lt;a href=&quot;#p_inj_NS_1&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;&lt;/p&gt;&apos;;
	//#cdata, valid elements, innerHTML injection
	// target.innerHTML += &apos;\n&lt;p xmlns=&quot;http://www.w3.org/1999/xhtml&quot; id=&quot;p_inj_NS_1&quot;&gt;This paragraph is injected trough innerHTML with NS.\n&lt;a href=&quot;#p_inj_NS_1&quot;&gt;Link to the anchor of this paragraph.&lt;/a&gt;&lt;/p&gt;&apos;;

	var client = new XMLHttpRequest();
	client.onreadystatechange = function () {
		if(this.readyState == 4 &amp;&amp; this.status == 200) {
			if (this.responseXML &amp;&amp; this.responseXML.documentElement) {
				window.status = &apos;importNode&apos;
				target.appendChild(document.importNode(this.responseXML.documentElement, true));
			}
			else {
				window.status = &apos;innerHTML&apos;
				target.innerHTML += this.responseText;
			}
		}
	};
	
	client.open(&quot;GET&quot;, &quot;dom_injection_NS.xhtml&quot;);	//application/xhtml+xml, no #cdata, valid elements, DOM methods injection
	// client.open(&quot;GET&quot;, &quot;dom_injection.xhtml&quot;);		//application/xhtml+xml, no #cdata, invalid elements, DOM methods injection
	// client.open(&quot;GET&quot;, &quot;dom_injection_NS.html&quot;);		//text/html, #cdata, valid elements, innerHTML injection
	// client.open(&quot;GET&quot;, &quot;dom_injection.html&quot;);		//text/html, #cdata, valid elements, innerHTML injection
	client.send();
	
}

Depending of the uncommented line the js file, different case are observed, see comment.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66199</commentid>
    <comment_count>1</comment_count>
      <attachid>18266</attachid>
    <who name="Max Barel">max</who>
    <bug_when>2008-01-04 08:39:03 -0800</bug_when>
    <thetext>Created attachment 18266
base xhtml file</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66200</commentid>
    <comment_count>2</comment_count>
      <attachid>18267</attachid>
    <who name="Max Barel">max</who>
    <bug_when>2008-01-04 08:40:09 -0800</bug_when>
    <thetext>Created attachment 18267
injected xhtml chunk, NS</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66201</commentid>
    <comment_count>3</comment_count>
      <attachid>18268</attachid>
    <who name="Max Barel">max</who>
    <bug_when>2008-01-04 08:40:43 -0800</bug_when>
    <thetext>Created attachment 18268
injected xhtml chunk, no NS</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66202</commentid>
    <comment_count>4</comment_count>
      <attachid>18269</attachid>
    <who name="Max Barel">max</who>
    <bug_when>2008-01-04 08:41:44 -0800</bug_when>
    <thetext>Created attachment 18269
javascript injection</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66275</commentid>
    <comment_count>5</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2008-01-05 04:31:06 -0800</bug_when>
    <thetext>(In reply to comment #0)

&gt; Worth noting also, when using XMLHttpRequest to get an xhtml chunk, served as
&gt; application/xhtml+xml and injected from responseXML using DOM methods, injected
&gt; elements are not valid HTML elements if there is no explicit namespace through
&gt; xmlns attribute on the container element.

This part is correct: elements being inserted have a null namespace, so they are not treated as XHTML elements. Firefox gives the same result, of course.

It&apos;s a bit unfortunate that Web Inspector gives no indication of a problem in this case: e.g., both xhtml:a and null:a elements are displayed as &quot;a&quot;. Also, XMLSerializer serializes this incorrectly (Firefox has the same problem). Filed bug 16739 and bug 16740 for these issues; let&apos;s keep this bug focused on tracking just #cdata-section issue.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66278</commentid>
    <comment_count>6</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2008-01-05 06:20:12 -0800</bug_when>
    <thetext>Confirmed as a difference with Firefox.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66279</commentid>
    <comment_count>7</comment_count>
      <attachid>18289</attachid>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2008-01-05 06:20:48 -0800</bug_when>
    <thetext>Created attachment 18289
reduced test case</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66377</commentid>
    <comment_count>8</comment_count>
      <attachid>18302</attachid>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2008-01-06 10:38:04 -0800</bug_when>
    <thetext>Created attachment 18302
proposed fix

I do not quite understand the theory behind this, but the change looks straightforward.

Note that parsing a whole document is different from parsing a fragment for some reason. In the former case, we get &quot;characters&quot; callbacks, and do not need to handle ignorableWhitespace - yet for fragments, it seems necessary.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66378</commentid>
    <comment_count>9</comment_count>
      <attachid>18302</attachid>
    <who name="Darin Adler">darin</who>
    <bug_when>2008-01-06 11:20:14 -0800</bug_when>
    <thetext>Comment on attachment 18302
proposed fix

r=me</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>66383</commentid>
    <comment_count>10</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2008-01-06 11:36:07 -0800</bug_when>
    <thetext>Committed revision 29211.

</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1502863</commentid>
    <comment_count>11</comment_count>
    <who name="Lucas Forschler">lforschler</who>
    <bug_when>2019-02-06 09:02:54 -0800</bug_when>
    <thetext>Mass moving XML DOM bugs to the &quot;DOM&quot; Component.</thetext>
  </long_desc>
      
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            <desc>reduced test case</desc>
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          </attachment>
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>18302</attachid>
            <date>2008-01-06 10:38:04 -0800</date>
            <delta_ts>2008-01-06 11:20:14 -0800</delta_ts>
            <desc>proposed fix</desc>
            <filename>16731r1_patch.txt</filename>
            <type>text/plain</type>
            <size>3817</size>
            <attacher name="Alexey Proskuryakov">ap</attacher>
            
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<flag name="review"
          id="7981"
          type_id="1"
          status="+"
          setter="darin"
    />
          </attachment>
      

    </bug>

</bugzilla>