I have an input field on a webpage that contains a credit-card number. What is the best way of preventing the browser from caching this value?
Any solution needs to work on a large selection of browsers.
+3
A:
<asp:TextBox Runat="server" ID="Textbox1" autocomplete="off"></asp:TextBox>
Kobi
2010-04-26 16:42:42
I can't believe I've not seen that before. I must have been living a bubble! Thanks.
Simon Johnson
2010-04-26 16:46:54
The TextBox has an `AutoCompleteType`, but it doesn't support `off`. Also, womp's comment adds useful details on the subject. If you need this for security, maybe you need more...
Kobi
2010-04-26 16:49:59
For further information on the `AutoCompleteType` enumeration, see [here](http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.autocompletetype.aspx).It might not support, `Off` but it supports `Disabled`.
Simon Johnson
2010-04-26 17:06:10
@Simon - I did check before I posted, and `Disables` didn't generate `autocomplete` for me. Odd. Possibly because I'm using Firefox/
Kobi
2010-04-26 19:42:03
I've confirmed this myself. On that basis, I'm going to move the accepted answer to Juha. Thanks for the help!
Simon Johnson
2010-04-27 09:00:56
+4
A:
Put attribute autocomplete="off" to your html form. E.g.
<form name="form1" id="form1" method="post" autocomplete="off"
action="http://www.example.com/form.cgi">
[...]
</form>
See this page.
Juha Syrjälä
2010-04-26 16:45:42