Many API Requests are throwing 404 Error.

Well, the starship and vehicle resource just don't exist. That's 100% normal HTTP behaviour.

As for the others, I think it is a just DRF being weird with the header in the browser view.

If you curl it they are there:

http https://swapi.co/api/films/schema
HTTP/1.1 200 OK
CF-RAY: 38aa8ff0ff21356c-LHR
Connection: keep-alive
Content-Encoding: gzip
Content-Type: application/json
Date: Mon, 07 Aug 2017 13:25:30 GMT
Etag: W/"c36cc9fe95f1fa4de8a7c698630ab6c0"
Server: cloudflare-nginx
Set-Cookie: __cfduid=d48770dab0b87dcfe9172514bc6fa65ae1502112330; expires=Tue, 07-Aug-18 13:25:30 GMT; path=/; domain=.swapi.co; HttpOnly
Transfer-Encoding: chunked
Via: 1.1 vegur
X-Frame-Options: SAMEORIGIN

{
    "$schema": "http://json-schema.org/draft-04/schema",
    "description": "A Star Wars film",
    "properties": {
        "characters": {
            "description": "The people resources featured within this film.",
            "type": "array"
        },
        "created": {
            "description": "The ISO 8601 date format of the time that this resource was created.",
            "format": "date-time",
            "type": "string"
        },
        "director": {
            "description": "The director of this film.",
            "type": "string"
        },
        "edited": {
            "description": "the ISO 8601 date format of the time that this resource was edited.",
            "format": "date-time",
            "type": "string"
...

phalt / swapi

Many API Requests are throwing 404 Error. #96