Treehouse

Prevent Form Field Autocomplete

By on  

Preventing autocompletion of form fields is incredibly important since we never know where our users are completing them from. They could complete them from a super secure computer or an incredibly public computer. Regardless of security level, some field values should never be remembered, like credit card number, social security number, etc. Preventing autocompletion is as simple as adding one attribute to a FORM tag for individual form fields.

The HTML

The autocomplete attribute is the key. This attribute may be added FORM tags to prevent any autocompletion:

<form method="post" autocomplete="off">

You may also isolate single fields for preventing autocompletion:

<input type="text" name="credit_card" autocomplete="off" />

Big detail, simple task, simple solution.

ydkjs-5.png

Recent Features

  • Introducing MooTools&nbsp;Templated

    One major problem with creating UI components with the MooTools JavaScript framework is that there isn't a great way of allowing customization of template and ease of node creation. As of today, there are two ways of creating: new Element Madness The first way to create UI-driven...

  • An Interview with Eric&nbsp;Meyer

    Your early CSS books were instrumental in pushing my love for front end technologies. What was it about CSS that you fell in love with and drove you to write about it? At first blush, it was the simplicity of it as compared to the table-and-spacer...

Incredible Demos

Discussion

  1. Slow day for blog posts? :P

  2. Pritesh Desai

    its a bad idea to make users type out their email id, name etc on every website. There’s a reason why autocomplete was invented.

    • As I stated, there are credit card numbers, social security numbers, passwords, etc. Those shouldn’t be remembered.

  3. simple-touriste

    Passwords should be remembered IF users want to them of be remembered.

    There is a bug about that in Chromium:
    https://code.google.com/p/chromium/issues/detail?id=177290

    Until it’s fixed, there is an add-on for this:

    By using the feature, websites force me to use this add-on, which could decrease my security.

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!

Use Code Editor