Angular 8 ng 测试 Web Worker 失败，返回 "Module scripts are not supported on DedicatedWorker yet"

Question

使用 Angular CLI 创建一个新项目并生成一个 web-worker 并进行测试。

ng new demo
ng generate web-worker app
ng test --browsers=ChromeHeadless

获取错误:

TypeError: Failed to construct 'Worker': Module scripts are not supported on DedicatedWorker yet. You can try the feature with '--enable-experimental-web-platform-features' flag (see https://crbug.com/680046)

将“--enable-experimental-web-platform-features”添加到命令行失败并显示“未知选项”。是否可以将“enable-experimental-web-platform-features”作为标志传递或有条件地配置它？

Answer 1

我找到了解决方案。在脚本之后的“测试”部分的 angular.json 中:[] 需要像构建部分一样添加 webWorkerTsConfig 字段:

"webWorkerTsConfig": "tsconfig.worker.json"

我的“测试”部分现在看起来像(这是一个空项目):

        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.spec.json",
            "karmaConfig": "karma.conf.js",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": [],
            "webWorkerTsConfig": "tsconfig.worker.json"
          }
        },

希望，能帮到你:)