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		<id>https://www.techotopia.com/index.php?action=history&amp;feed=atom&amp;title=An_Overview_of_Ad_Blocking_Technology</id>
		<title>An Overview of Ad Blocking Technology - Revision history</title>
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		<link rel="alternate" type="text/html" href="https://www.techotopia.com/index.php?title=An_Overview_of_Ad_Blocking_Technology&amp;action=history"/>
		<updated>2026-04-11T00:12:04Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.techotopia.com/index.php?title=An_Overview_of_Ad_Blocking_Technology&amp;diff=29475&amp;oldid=prev</id>
		<title>Neil: Text replacement - &quot;&lt;table border=&quot;0&quot; cellspacing=&quot;0&quot;&gt;&quot; to &quot;&lt;table border=&quot;0&quot; cellspacing=&quot;0&quot; width=&quot;100%&quot;&gt;&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.techotopia.com/index.php?title=An_Overview_of_Ad_Blocking_Technology&amp;diff=29475&amp;oldid=prev"/>
				<updated>2016-10-27T19:54:24Z</updated>
		
		<summary type="html">&lt;p&gt;Text replacement - &amp;quot;&amp;lt;table border=&amp;quot;0&amp;quot; cellspacing=&amp;quot;0&amp;quot;&amp;gt;&amp;quot; to &amp;quot;&amp;lt;table border=&amp;quot;0&amp;quot; cellspacing=&amp;quot;0&amp;quot; width=&amp;quot;100%&amp;quot;&amp;gt;&amp;quot;&lt;/p&gt;
&lt;table class=&#039;diff diff-contentalign-left&#039;&gt;
				&lt;col class=&#039;diff-marker&#039; /&gt;
				&lt;col class=&#039;diff-content&#039; /&gt;
				&lt;col class=&#039;diff-marker&#039; /&gt;
				&lt;col class=&#039;diff-content&#039; /&gt;
				&lt;tr style=&#039;vertical-align: top;&#039; lang=&#039;en&#039;&gt;
				&lt;td colspan=&#039;2&#039; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&#039;2&#039; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 19:54, 27 October 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;table border=&amp;quot;0&amp;quot; cellspacing=&amp;quot;0&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;table border=&amp;quot;0&amp;quot; cellspacing=&amp;quot;0&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; width=&amp;quot;100%&lt;/ins&gt;&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;tr&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;tr&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;td width=&amp;quot;20%&amp;quot;&amp;gt;[[Ad Blocking and the State of Online Advertising|Previous]]&amp;lt;td align=&amp;quot;center&amp;quot;&amp;gt;[[Ad Blocking Survival|Table of Contents]]&amp;lt;td width=&amp;quot;20%&amp;quot; align=&amp;quot;right&amp;quot;&amp;gt;[[Ad Blocker Detection Techniques|Next]]&amp;lt;/td&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;td width=&amp;quot;20%&amp;quot;&amp;gt;[[Ad Blocking and the State of Online Advertising|Previous]]&amp;lt;td align=&amp;quot;center&amp;quot;&amp;gt;[[Ad Blocking Survival|Table of Contents]]&amp;lt;td width=&amp;quot;20%&amp;quot; align=&amp;quot;right&amp;quot;&amp;gt;[[Ad Blocker Detection Techniques|Next]]&amp;lt;/td&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l123&quot; &gt;Line 123:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 123:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Many ad blockers (particularly those provided in the form of a web browser extension) access filter lists to identify the content elements to hide and ad server addresses to block.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Many ad blockers (particularly those provided in the form of a web browser extension) access filter lists to identify the content elements to hide and ad server addresses to block.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;table border=&amp;quot;0&amp;quot; cellspacing=&amp;quot;0&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;table border=&amp;quot;0&amp;quot; cellspacing=&amp;quot;0&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; width=&amp;quot;100%&lt;/ins&gt;&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;tr&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;tr&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;td width=&amp;quot;20%&amp;quot;&amp;gt;[[Ad Blocking and the State of Online Advertising|Previous]]&amp;lt;td align=&amp;quot;center&amp;quot;&amp;gt;[[Ad Blocking Survival|Table of Contents]]&amp;lt;td width=&amp;quot;20%&amp;quot; align=&amp;quot;right&amp;quot;&amp;gt;[[Ad Blocker Detection Techniques|Next]]&amp;lt;/td&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;td width=&amp;quot;20%&amp;quot;&amp;gt;[[Ad Blocking and the State of Online Advertising|Previous]]&amp;lt;td align=&amp;quot;center&amp;quot;&amp;gt;[[Ad Blocking Survival|Table of Contents]]&amp;lt;td width=&amp;quot;20%&amp;quot; align=&amp;quot;right&amp;quot;&amp;gt;[[Ad Blocker Detection Techniques|Next]]&amp;lt;/td&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Neil</name></author>	</entry>

	<entry>
		<id>https://www.techotopia.com/index.php?title=An_Overview_of_Ad_Blocking_Technology&amp;diff=29334&amp;oldid=prev</id>
		<title>Neil: /* Ad Blocker Lists */</title>
		<link rel="alternate" type="text/html" href="https://www.techotopia.com/index.php?title=An_Overview_of_Ad_Blocking_Technology&amp;diff=29334&amp;oldid=prev"/>
				<updated>2016-08-01T18:24:08Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Ad Blocker Lists&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&#039;diff diff-contentalign-left&#039;&gt;
				&lt;col class=&#039;diff-marker&#039; /&gt;
				&lt;col class=&#039;diff-content&#039; /&gt;
				&lt;col class=&#039;diff-marker&#039; /&gt;
				&lt;col class=&#039;diff-content&#039; /&gt;
				&lt;tr style=&#039;vertical-align: top;&#039; lang=&#039;en&#039;&gt;
				&lt;td colspan=&#039;2&#039; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&#039;2&#039; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 18:24, 1 August 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l84&quot; &gt;Line 84:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 84:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Figure 3-3&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Figure 3-3&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;htmlet&amp;gt;ab_survival&amp;lt;/htmlet&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Ad Blocker Lists ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Ad Blocker Lists ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l113&quot; &gt;Line 113:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 114:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In addition to the lists containing filters for ad elements and ad servers, privacy lists are also used to block tracking scripts (such as those used by Google Analytics). &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In addition to the lists containing filters for ad elements and ad servers, privacy lists are also used to block tracking scripts (such as those used by Google Analytics). &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In general these lists are user generated in so far as suggestions for additions to the list are submitted by users of the ad blocking tools. If an ad blocker user visits a page where ads are still visible, the user may pass information about the ad element and ad server to the people who maintain the filter list for that particular ad blocker. One of these maintainers will, subject to reviewing the suggestion, create a filter to block the ad and append it to the list. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In general these lists are user generated in so far as suggestions for additions to the list are submitted by users of the ad blocking tools. If an ad blocker user visits a page where ads are still visible, the user may pass information about the ad element and ad server to the people who maintain the filter list for that particular ad blocker. One of these maintainers will, subject to reviewing the suggestion, create a filter to block the ad and append it to the list.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Summary ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Summary ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Neil</name></author>	</entry>

Exception encountered, of type &quot;Error&quot;<br />
[edd9efd2] /index.php?action=history&amp;feed=atom&amp;title=An_Overview_of_Ad_Blocking_Technology   Error from line 434 of /var/www/techotopia/includes/diff/DairikiDiff.php: Call to undefined function each()<br />
Backtrace:<br />
#0 /var/www/techotopia/includes/diff/DairikiDiff.php(544): DiffEngine-&gt;diag()<br />
#1 /var/www/techotopia/includes/diff/DairikiDiff.php(344): DiffEngine-&gt;compareSeq()<br />
#2 /var/www/techotopia/includes/diff/DairikiDiff.php(227): DiffEngine-&gt;diffLocal()<br />
#3 /var/www/techotopia/includes/diff/DairikiDiff.php(721): DiffEngine-&gt;diff()<br />
#4 /var/www/techotopia/includes/diff/DifferenceEngine.php(879): Diff-&gt;__construct()<br />
#5 /var/www/techotopia/includes/diff/DifferenceEngine.php(797): DifferenceEngine-&gt;generateTextDiffBody()<br />
#6 /var/www/techotopia/includes/diff/DifferenceEngine.php(728): DifferenceEngine-&gt;generateContentDiffBody()<br />
#7 /var/www/techotopia/includes/diff/DifferenceEngine.php(662): DifferenceEngine-&gt;getDiffBody()<br />
#8 /var/www/techotopia/includes/FeedUtils.php(155): DifferenceEngine-&gt;getDiff()<br />
#9 /var/www/techotopia/includes/actions/HistoryAction.php(325): FeedUtils::formatDiffRow()<br />
#10 /var/www/techotopia/includes/actions/HistoryAction.php(290): HistoryAction-&gt;feedItem()<br />
#11 /var/www/techotopia/includes/actions/HistoryAction.php(130): HistoryAction-&gt;feed()<br />
#12 /var/www/techotopia/includes/actions/FormlessAction.php(43): HistoryAction-&gt;onView()<br />
#13 /var/www/techotopia/includes/MediaWiki.php(490): FormlessAction-&gt;show()<br />
#14 /var/www/techotopia/includes/MediaWiki.php(287): MediaWiki-&gt;performAction()<br />
#15 /var/www/techotopia/includes/MediaWiki.php(714): MediaWiki-&gt;performRequest()<br />
#16 /var/www/techotopia/includes/MediaWiki.php(508): MediaWiki-&gt;main()<br />
#17 /var/www/techotopia/index.php(41): MediaWiki-&gt;run()<br />
#18 {main}<br />

