While in edit mode using Google Chrome, if a page contains a HTML macro with HTML form markup inside, clicking "Cancel" or "Save" will result in a blank screen. This is tested in Google Chrome (Google Chrome version 19 and 23 tested).

Steps to Reproduce

1. Create a page and enter this HTML form

   <form enctype="multipart/form-data" method="post" action="http://www.test.com/mail.php" accept-charset="UTF-8">
   	<div>
   		<input type="hidden" name="acctid" id="acctid" value="7ksurkrkzxyj5epi" />
   		<input type="hidden" name="formid" id="formid" value="1155349" />
   		<input type="hidden" name="required_vars" id="required_vars" value="name,email" />
   	</div>
   	<table cellspacing="5" cellpadding="5" border="0">
   		<tr>
   			<td valign="top">
   				<strong>Name:</strong>
   			</td>
   			<td valign="top">
   				<input type="text" name="name" id="name" size="40" value="" />
   				
   			</td>
   		</tr>
   		<tr>
   			<td valign="top">
   				<strong>Email Address:</strong>
   			</td>
   			<td valign="top">
   				<input type="text" name="email" id="email" size="40" value="" />
   				
   			</td>
   		</tr>
   		<tr>
   			<td colspan="2" align="center">
   				<input type="submit" value=" Submit Form " />
   			</td>
   		</tr>
   	</table>
   </form>
   

2. Attempt to Save the page
   • Expected behaviour - the page saves and the form is visible
   • Actual behaviour - the browser redirects to 'about:blank'

NB: The page is actually saved. You can go to the Dashboard and find the page, and the form is visible and correct

Workaround

1. Follow the steps above, then go to the Dashboard or the parent page after the blank page is displayed
2. You will see the page is in the recent updates (or listed in the child pages of the parent page), and it works correctly