Package: django-cors-headers-multi
django-cors-headers-multi=========================A Django App that adds CORS (Cross-Origin Resource Sharing) headers to responses.Although JSON-P is useful, it is strictly limited to GET requests. CORS builds on top of XmlHttpRequest to allow developers to make cross-domain requests, similar to same-domain requests. Read more about it here: [http://www.html5rocks.com/en/tutorials/cors/ ](http://www.html5rocks.com/en/tutorials/cors/)[![Build Status](https://travis-ci.org/ottoyiu/django-cors-headers.png?branch=master)](https://travis-ci.org/ottoyiu/django-cors-headers)## Setup ##Install by downloading the source and running:>   python setup.py installor>   pip install django-cors-headers-multiand then add it to your installed apps:INSTALLED_APPS = (...'corsheaders',...)You will also need to add a middleware class to listen in on responses:MIDDLEWARE_CLASSES = (...'corsheaders.middleware.CorsMiddleware','django.middleware.common.CommonMiddleware',...)Note that `CorsMiddleware` needs to come before Django's `CommonMiddleware` if you are using Django's `USE_ETAGS = True` setting, otherwise the CORS headers will be lost from the 304 not-modified responses, causing errors in some browsers.## Configuration ##Add hosts that are allowed to do cross-site requests to `CORS_ORIGIN_WHITELIST` or set `CORS_ORIGIN_ALLOW_ALL` to `True` to allow all hosts.>CORS\_ORIGIN\_ALLOW\_ALL: if True, the whitelist will not be used and all origins will be acceptedDefault:CORS_ORIGIN_ALLOW_ALL = False>CORS\_ORIGIN\_WHITELIST: specify a list of origin hostnames that are authorized to make a cross-site HTTP requestExample:CORS_ORIGIN_WHITELIST = ('google.com','hostname.example.com')Default:CORS_ORIGIN_WHITELIST = ()>CORS\_ORIGIN\_REGEX\_WHITELIST: specify a regex list of origin hostnames that are authorized to make a cross-site HTTP request; Useful when you have a large amount of subdomains for instance.Example:CORS_ORIGIN_REGEX_WHITELIST = ('^(https?://)?(\w+\.)?google\.com$', )Default:CORS_ORIGIN_REGEX_WHITELIST = ()---You may optionally specify these options in settings.py to override the defaults. Defaults are shown below:>CORS\_URLS\_REGEX: specify a URL regex for which to enable the sending of CORS headers; Useful when you only want to enable CORS for specific URLs, e. g. for a REST API under ``/api/``.Example:CORS_URLS_REGEX = r'^/api/.*$'Default:CORS_URLS_REGEX = '^.*$'>CORS\_ALLOW\_METHODS: specify the allowed HTTP methods that can be used when making the actual requestDefault:CORS_ALLOW_METHODS = ('GET','POST','PUT','PATCH','DELETE','OPTIONS')>CORS\_ALLOW\_HEADERS: specify which non-standard HTTP headers can be used when making the actual requestDefault:CORS_ALLOW_HEADERS = ('x-requested-with','content-type','accept','origin','authorization','x-csrftoken')>CORS\_EXPOSE\_HEADERS: specify which HTTP headers are to be exposed to the browserDefault:CORS_EXPOSE_HEADERS = ()>CORS\_PREFLIGHT\_MAX\_AGE: specify the number of seconds a client/browser can cache the preflight responseNote: A preflight request is an extra request that is made when making a "not-so-simple" request (eg. content-type is not application/x-www-form-urlencoded) to determine what requests the server actually accepts. Read more about it here: [http://www.html5rocks.com/en/tutorials/cors/](http://www.html5rocks.com/en/tutorials/cors/)Default:CORS_PREFLIGHT_MAX_AGE = 86400>CORS\_ALLOW\_CREDENTIALS: specify whether or not cookies are allowed to be included in cross-site HTTP requests (CORS).Default:CORS_ALLOW_CREDENTIALS = False>CORS\_REPLACE\_HTTPS\_REFERER: specify whether to replace the HTTP_REFERER header if CORS checks pass so that CSRF django middleware checks will work with httpsNote: With this feature enabled, you also need to add the corsheaders.middleware.CorsPostCsrfMiddleware after django.middleware.csrf.CsrfViewMiddleware to undo the header replacementDefault:CORS_REPLACE_HTTPS_REFERER = False>CORS\_ENDPOINT\_OVERRIDES: a list of (regex, override) pairs that override settings for certain URLs.Example:CORS_ENDPOINT_OVERRIDES = [(r'/api/user/.*$', {'CORS_ORIGIN_WHITELIST': ['https://secure.mydomain.com'],}),(r'/api/public/.*$', {'CORS_ORIGIN_ALLOW_ALL': True,}),]Default:CORS_ENDPOINT_OVERRIDES = []## Changelog ##v0.13 and onwards - [Release Notes](https://github.com/ottoyiu/django-cors-headers/releases)v0.12 - Added an option to selectively enable CORS only for specific URLsv0.11 - Added the ability to specify a regex for whitelisting many origin hostnames at oncev0.10 - Introduced port distinction for origin checking; use ``urlparse`` for Python 3 support; added testcases to projectv0.06 - Add support for exposed response headersv0.05 - fixed middleware to ensure correct response for CORS preflight requestsv0.04 - add Access-Control-Allow-Credentials control to simple requestsv0.03 - bugfix (repair mismatched default variable names)v0.02 - refactor/pull defaults into separate filev0.01 - initial release## Credits ##A shoutout to everyone who has contributed:- Otto Yiu - [@ottoyiu](https://github.com/ottoyiu)- Michael Tom-Wing - [@mtomwing](https://github.com/mtomwing)- Darrin Massena - [@darrinm](https://github.com/darrinm)- Paul Dufour - [@pdufour](https://github.com/pdufour)- Lukasz Balcerzak - [@lukaszb](https://github.com/lukaszb)- Keita Oouchi - [@keitaoouchi](https://github.com/keitaoouchi)- Orlando Pozo - [@opozo](https://github.com/opozo)- Toran Billups - [@toranb](https://github.com/toranb)- Raymond Penners - [@pennersr](https://github.com/pennersr)- Markus Kaiserswerth - [@mkai](https://github.com/mkai)- and many others! - [Contributors](https://github.com/ottoyiu/django-cors-headers/graphs/contributors)