Why is EXIF ​​data missing when uploading images via Safari iOS6?

Question

safari

The web application has a form for uploading an image to the server via
<input type='file' name='photofile'>
When uploading an image from an iPad via Safari, EXIF ​​data is lost (GPS Latitude and GPS Longitude are of particular interest). The problem is known in principle: Image upload from iphone strips exif data , losing GPS metadata while uploading picture with m... .
Wondering if there is a solution for this problem? Browser settings, extensions for Safari, etc. Maybe someone came across.
PS GPS settings are enabled, EXIF ​​data is successfully exported through iPhoto.