Created
May 31, 2017 11:26
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| if (request.method == 'OPTIONS') { | |
| /** | |
| * Supplies a response to a CORS preflight request. | |
| * | |
| * Example response: | |
| * | |
| * HTTP/1.1 200 OK | |
| * Access-Control-Allow-Origin: http://app.example.com:8081 | |
| * Access-Control-Allow-Methods: POST | |
| * Access-Control-Allow-Headers: Authorization | |
| * Access-Control-Allow-Credentials: true | |
| * Access-Control-Max-Age: 3600 | |
| */ | |
| def origin = request.headers['Origin']?.firstValue | |
| def response = new Response(Status.OK) | |
| // Browsers sending a cross-origin request from a file might have Origin: null. | |
| response.headers.put("Access-Control-Allow-Origin", origin) | |
| request.headers['Access-Control-Request-Method']?.values.each() { | |
| response.headers.add("Access-Control-Allow-Methods", it) | |
| } | |
| request.headers['Access-Control-Request-Headers']?.values.each() { | |
| response.headers.add("Access-Control-Allow-Headers", it) | |
| } | |
| response.headers.put("Access-Control-Allow-Credentials", "true") | |
| response.headers.put("Access-Control-Max-Age", "3600") | |
| return response | |
| } | |
| return next.handle(context, request) | |
| .thenOnResult { response -> | |
| if (!response.status.isServerError()) { | |
| def headers = [ | |
| "Access-Control-Allow-Origin": request.headers['Origin']?.firstValue, | |
| "Access-Control-Allow-Credentials": "true", | |
| "Access-Control-Expose-Headers": "WWW-Authenticate" | |
| ] | |
| response.headers.addAll(headers) | |
| } | |
| } |
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