A simple django middleware class which injects a Cache-Control: no-cache header onto POST responses.
- pip install django-postleware
- Add the middleware to settings.py
MIDDLEWARE_CLASSES = ( 'postleware.PostResponseCachebusterMiddleware', # ... )
Mobile Webkit (iOS4+ and Android stock bowser) has a bug that causes it to cache similar POST requests when it clearly shouldn't. Rather than only caching requests that have a specific Cache-Control header, it does the opposite and caches the request unless the no-cache value is present in the POST response.
Let me know by opening an issue or pull request. This was enough for me, but I have read around the webs that other devs needed to add additional headers to the response before it would stop caching.