Google App Engine: localhost browser caching?

Question

I'm developing with GAE on my own machine. It was pretty fast, until I added CSS and images, at which point the page loads much more slowly. I suspect that the browser isn't caching anything, perhaps because GAE isn't setting any far-future expiration headers in the HTTP request. Is there anything I can do to get around this?

I tried this, but it doesn't seem to work:

self.response.headers['Expires'] = "10 Dec 2020 20:00:00 GMT"

Adding this to app.yaml works better:

default_expiration: "100d"

Answer 1

Have you tried setting caching options for static files?