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It depends on the design of the application. &nbsp;Key question: Is there any effect from resubmitting the previous page repeatedly? &nbsp;If the operation on the previous page (the page you're going back to) is <a href="http://www.less-broken.com/blog/2011/07/why-you-should-care-about-idempotence.html" rel="ugc">nullipotent</a>, there is no reason to trigger the confirmation. &nbsp;You can avoid the confirmation by using the GET method to make the request on the previous page. &nbsp;And in some cases, if the operation on the previous page was idempotent, you can mess around with the JavaScript to change the URL of the previous page. 
 
A good understanding of the HTTP protocol will help you see what is happening. 
<a href="https://www.experts-exchange.com/articles/11271/Understanding-Client-Server-Protocols-and-Web-Applications.html" rel="ugc">https://www.experts-exchange.com/articles/11271/Understanding-Client-Server-Protocols-and-Web-Applications.html</a> 
 
Here is the usual sequence of events that triggers the confirmation request: 
 
Request #1: Client visits a web page that contains an HTML form with POST-method 
Request #2: Client submits the POST-method request 
Response: Server does something with the POST request and produces a &quot;thank you&quot; page 
Request #3: Client sees the &quot;thank you&quot; and hits the back button, causing the POST request to be submitted again 
 
This used to be a problem in about 1999 when clients would accidentally pay for things twice or three times by hitting the back button to see if slow, balky servers were actually getting their orders. &nbsp;Today we use cookies, databases, and other tools to prevent duplicate submissions, so it's less of a problem.
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my guess is you have put your menu fields in a form. If yes, then its working as designed. However we dont usually use menu in a form. 
 
 
There are many online menu creators available which you can plugin with your webpage. My personal selection is <a href="http://www.milonic.com" rel="ugc">www.milonic.com</a>&nbsp; 
 
This way you can get out of the confirmation window and it also would give an elegant look n feel.
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Thanks both. 
 
I only use plugins if they're absolutely necessary, but I'll take a look at it anyway. 
 

<blockquote>
Is there any effect from resubmitting the previous page repeatedly?
</blockquote>
 No. 
 
Here's the menu code 

<pre><code class="code-10 nolinks" id="code-20-41362945-1">&lt;!-- CONTENT START ---&gt;
&lt;div id=&quot;head_title&quot; class=&quot;blue_3&quot;&gt;Administration Menu&lt;/div&gt;
&lt;img id=&quot;head_img&quot; src=&quot;../images/smallspheresh.jpg&quot;&gt;
&lt;div id=&quot;table_box2&quot;&gt;
 &lt;div&gt;
 &lt;p class=&quot;con_medium_normal&quot;&gt;Welcome to the Website Administration Section&lt;/p&gt;
 &lt;table id=&quot;admin_menu_table&quot;&gt;
 &lt;tr&gt;
 	&lt;td colspan=3&gt;&amp;nbsp;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=teachers&quot; class=&quot;button large brown&quot; &gt;Teachers&lt;/a&gt;&lt;/td&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=stop_press&quot; class=&quot;button large brown&quot; &gt;Stop Press&lt;/a&gt;&lt;/td&gt;
 	&lt;td&gt;&amp;nbsp;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td colspan=3&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=newsletters&quot; class=&quot;button large brown&quot; &gt;Newsletters&lt;/a&gt;&lt;/td&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=letters&quot; class=&quot;button large brown&quot; &gt;Letters home&lt;/a&gt;&lt;/td&gt;
 	&lt;td&gt;&amp;nbsp;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=diary&quot; class=&quot;button large brown&quot; &gt;Diary&lt;/a&gt;&lt;/td&gt;
 	&lt;td colspan=2 style='height:20px;'&gt;&amp;nbsp;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=clubs&quot; class=&quot;button large brown&quot; &gt;Clubs and Activities&lt;/a&gt;&lt;/td&gt;
 	&lt;td&gt;&lt;a href=&quot;?wh=curriculum&quot; class=&quot;button large brown&quot; &gt;Curricula&lt;/a&gt;&lt;/td&gt;
 	&lt;td&gt;&amp;nbsp;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td colspan=3&gt;&lt;/td&gt;
 &lt;/tr&gt;
 &lt;tr&gt;
 	&lt;td colspan=3&gt;&lt;?php include (HTML_PATH.DS.'logout.html.php'); ?&gt;&lt;/td&gt;
 &lt;/tr&gt; 
 &lt;/table&gt; 
 &lt;/div&gt;
&lt;/div&gt;
</code></pre>
 
So the navigation is controlled by $_GET. &nbsp;So by hitting the back button I'd simply want to remove the ?xxx part of the URL. &nbsp;Could you show me the js code I'd need to do this please, as I guess that would be what's needed here.
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I see nothing &nbsp;in this HTML that would trigger a confirmation. &nbsp;Installed on my own server, here: 
<a href="http://iconoun.com/demo/temp_colinspurs.php" rel="ugc">http://iconoun.com/demo/temp_colinspurs.php</a> 
 
Click around that page a bit and see if you get the confirmation message. &nbsp;I don't. &nbsp;So the effect may be coming from somewhere else.
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I don't either. &nbsp;I did think it very odd, so it must be coming from somewhere else. &nbsp; 
 
It doesn't matter what option is selected, here's the code from &quot;view source&quot; for the simplest. &nbsp;The html is built by including portions of html (header, content, footer) from a php index file. 
<a href="https://filedb.experts-exchange.com/incoming/2015/12_w50/1052141/ee_source.html" target="_blank" class="file-inline" title="source code of html (9 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>ee_source.html</a>
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ee_source.html

<div>
OK, will do. 
 
Cheers.
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<div>
Thanks, the delay in getting back to you was because I was re-jigging the code to get rid of all those extra form elements. &nbsp;Seems to be working as required now.
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<div>
<div class="content wysiwyg-content">
Hi experts, 
 
If I choose one option from a menu, and then hit the browser back button, I am asked to confirm resubmission...is there any way I can avoid having to do this and go straight back to the menu? 
 
I am looking at this from the developer's viewpoint, I don't want my users being asked to confirm after simply hitting the back button. 
 
Or is it by design? 
 
Cheers, 
&nbsp; &nbsp; 
&nbsp; &nbsp; Col
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</div>

Hi experts,

If I choose one option from a menu, and then hit the browser back button, I am asked to confirm resubmission...is there any way I can avoid having to do this and go straight back to the menu?

I am looking at this from the developer's viewpoint, I don't want my users being asked to confirm after simply hitting the back button.

Or is it by design?

Cheers,
   
    Col

Avoid confirm on browser back button

HTML (HyperText Markup Language) is the main markup language for creating web pages and other information to be displayed in a web browser, providing both the structure and content for what is sent from a web server through the use of tags. The current implementation of the HTML specification is HTML5.

HTML

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.