Can't touch this!

Posted by ruadhan 2 years 17 weeks ago

Network operators often install transcoding technologies on their WAP Gateways. Transcoding proxies attempt to automatically transform content to make it more suitable for mobile access. However, since this is an automatic process the result to your site can often be sub-optimal. If you have developed a mobile-optimized site, then your content is already be fit for mobile consumption; transcoding it may well ruin the mobile user-experience that you worked hard to create.

By including a no-transform directive in your Cache-control HTTP header you can indicate to transcoding proxies that they should NOT transform your content (although some proxies might ignore it).

In PHP you can achieve this by including the following line of code at the top of your page:

header("Cache-control: no-transform");