app.json

{
    "name": "CORS Anywhere",
    "description": "Setup a proxy which allows permissive CORS headers to be added to upstream API responses",
    "env": {
      "NODE_TLS_REJECT_UNAUTHORIZED": {
        "value": "",
        "required": false
      },
      "CORSANYWHERE_BLOCKLIST": {
        "description": "Block-list of domains, comma-separated.",
        "value": "",
        "required": false
      },
      "CORSANYWHERE_ALLOWLIST": {
        "description": "Allow-list of domains; comma-separated.",
        "value": "http://localhost",
        "required": false
      },
      "CORSANYWHERE_RATELIMIT": {
        "description": "If you run an open proxy, you will be violating Heroku terms. Rate-limiting can help mitigate this.",
        "value": "1 1",
        "required": false
      },
      "NODE_ENV": "production",
      "NPM_CONFIG_PRODUCTION": {
        "description": "Must be false or npm will not install devDependencies",
        "value": "false"
      }
    },
    "buildpacks": [
      { "url": "https://github.com/heroku/heroku-buildpack-nodejs" }
    ]
  }