Force django to use settings.LANGUAGE_CODE for default language and not use equest.META['HTTP_ACCEPT_LANGUAGE'] for Django >= 1.10

force_default_middleware.py

class ForceDefaultLanguageMiddleware(object):
    """
    Ignore Accept-Language HTTP headers
    
    This will force the I18N machinery to always choose settings.LANGUAGE_CODE
    as the default initial language, unless another one is set via sessions or cookies
    
    Should be installed *before* any middleware that checks request.META['HTTP_ACCEPT_LANGUAGE'],
    namely django.middleware.locale.LocaleMiddleware
    """
    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        self.process_request(request)

        response = self.get_response(request)

        return response
    
    def process_request(self, request):
        if request.META.has_key('HTTP_ACCEPT_LANGUAGE'):
            del request.META['HTTP_ACCEPT_LANGUAGE']