#27572: Static files served in development should prevent caching
-------------------------------------+-------------------------------------
Reporter: Kevin Christopher | Owner: nobody
Henry |
Type: | Status: closed
Cleanup/optimization |
Component: contrib.staticfiles | Version: 1.10
Severity: Normal | Resolution: wontfix
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Old description:
> Currently, when Django serves static files in development with
> `runserver` and `django.contrib.staticfiles` it doesn't provide any cache
> headers. In their absence, user agents are free to cache the resources
> [https://tools.ietf.org/html/rfc7234#section-4.2.2 however they like].
> That means that when the developer updates a static resource they can't
> predict whether or not they will see the new version or the older cached
> version.
>
> Dealing with this on the user agent side isn't always easy. For example,
> if you're using an embedded browser in a native app you'll probably have
> to create a remote debugging connection to the app and use platform-
> specific development tools to manipulate or disable the cache.
>
> Since caching is a performance optimization that makes development more
> difficult and less predictable, I think it makes sense to disable it (via
> the appropriate HTTP headers) for static resources served in development.
New description:
--
Comment (by Mateusz Kurowski):
For future reference here is a monkey patch that works for me in
development:
{{{
from functools import wraps
import django.http
import django.views.static
def no_cache_static(f):
@wraps(f)
def static(*a, **kw):
response: django.http.response.HttpResponse = f(*a, **kw)
response.headers["Cache-Control"] = "no-cache"
return response
return static
django.views.static.serve = no_cache_static(django.views.static.serve)
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/27572#comment:4>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/01070186030ce5a8-c520b7df-82c4-4998-a9ad-dceafcdd983a-000000%40eu-central-1.amazonses.com.
