@tdb/web/debug.js/node_modules/next/dist/server/utils.js

Common condiguration for serving a web-site and testing web-based UI components.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isInternalUrl = isInternalUrl;
exports.addCorsSupport = addCorsSupport;
var internalPrefixes = [/^\/_next\//, /^\/static\//];

function isInternalUrl(url) {
  for (var _i = 0; _i < internalPrefixes.length; _i++) {
    var prefix = internalPrefixes[_i];

    if (prefix.test(url)) {
      return true;
    }
  }

  return false;
}

function addCorsSupport(req, res) {
  if (!req.headers.origin) {
    return {
      preflight: false
    };
  }

  res.setHeader('Access-Control-Allow-Origin', req.headers.origin);
  res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET'); // Based on https://github.com/primus/access-control/blob/4cf1bc0e54b086c91e6aa44fb14966fa5ef7549c/index.js#L158

  if (req.headers['access-control-request-headers']) {
    res.setHeader('Access-Control-Allow-Headers', req.headers['access-control-request-headers']);
  }

  if (req.method === 'OPTIONS') {
    res.writeHead(200);
    res.end();
    return {
      preflight: true
    };
  }

  return {
    preflight: false
  };
}