问使用fetch的DELETE请求在Safari中不起作用，但在Chrome中有效

EN

    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
    ],
    'DEFAULT_FILTER_BACKENDS': ('django_filters.rest_framework.DjangoFilterBackend',),
}

CORS_ORIGIN_ALLOW_ALL = False
CORS_ALLOW_CREDENTIALS = True
CORS_ORIGIN_WHITELIST = (
    'localhost:3000',
    'http://localhost:3000',
)

CORS_TRUSTED_ORIGINS = (
    'localhost:3000',
    'http://localhost:3000',
    '*'
)

CORS_ALLOW_METHODS = (
    'DELETE',
    'GET',
    'OPTIONS',
    'PATCH',
    'POST',
    'PUT',
)

CORS_ALLOW_HEADERS = (
    '*',
    'accept',
    'accept-encoding',
    'authorization',
    'content-type',
    'dnt',
    'origin',
    'user-agent',
    'x-csrftoken',
    'x-requested-with',
    'access-control-allow-credentials',
    'access-control-allow-headers',
    'access-control-allow-methods',
    'access-control-allow-origin',
)

fetch('http://localhost:8000/api-v1/projects/'.concat(this.props.projectId),
        {
            method: 'DELETE',
            mode: 'cors',
            credentials: 'same-origin',
            body: {},
            redirect: 'follow',
            referrer: 'no-referrer',
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
                'Access-Control-Allow-Headers': '*, Origin, X-Requested-With, Content-Type, Accept',
                'Access-Control-Allow-Methods': 'GET,PUT,POST,DELETE,OPTIONS',
                'Access-Control-Allow-Credentials': true,
                'Authorization': 'Basic ' + btoa('admin:pass'),
            },}).catch( e => console.error(e));

[Error] The network connection was lost.
[Error] Fetch API cannot load http://localhost:8000/api-v1/projects/54/ due to access control checks.
[Error] Failed to load resource: The network connection was lost. 
[Error] TypeError: The network connection was lost.
    promiseReactionJob