Whenever I use iWDL I get a bunch of error messages in the Apache log of missing .png files like so:
[Sat Aug 10 18:17:40 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon.png
[Sat Aug 10 18:17:40 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon-precomposed.png
[Sat Aug 10 18:17:40 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon-114x114.png
[Sat Aug 10 18:17:40 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon-114x114-precomposed.png
[Sat Aug 10 18:17:40 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon.png
[Sat Aug 10 18:17:39 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon-precomposed.png
[Sat Aug 10 18:17:39 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon-114x114.png
[Sat Aug 10 18:17:39 2013] [error] [client ] File does not exist: /public_html/storumanvader.se/apple-touch-icon-114x114-precomposed.png
The images seem to be called from all.min.js. After googling the names I found that they seem to be for when you’ve added it to the home screen, and are supposed to be local to the phone.
Yet it still looks like the script tries to find them on the server and fails?
Not a huge problem but I’ve been a bit bothered by the errors and now decided to find out where they come from. 
/Chris