chromium/chrome/test/data/extensions/platform_apps/launch_allowlisted_ext_with_file/manifest.json

{
  "name": "Platform App Launch Test",
  "version": "1",
  "manifest_version": 2,
  "file_handlers": {
    "text": {
      "extensions": [
        "txt"
      ]
    }
  },
  "background": {
    "scripts": ["test.js"]
  },
  "permissions": [
    "fileSystem"
  ],
  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4zyYTii0VTKI7W2U6fDeAvs3YCVZeAt7C62IC64IDCMHvWy7SKMpOPjfg5v1PgYkFm+fGsCsVLN8NaF7fzYMVtjLc5bqhqPAi56Qidrqh1HxPAAYhwFQd5BVGhZmh1fySHXFPE8VI2tIHwRrASOtx67jbSEk4nBAcJz6n+eGq8QIDAQAB"
}