Angular CLI停止在浏览器控制台中给我提供敏感的行(无源地图)，但终端显示正确的源

Question

几天前，我注意到我的Angular with Angular CLI项目停止给我一个合理的错误行。取而代之的是，我从main.js、vendor.js和所有其他编译过的代码文件中得到代码行。在我的终端中，它给了我一个“正常”的错误和未编译代码中的正确行。

此外，浏览器控制台中的console.log()来自编译后的代码。我不知道是什么改变了，这是否是故意的？我检查了我的环境，它在开发模式下运行。我已经更新了Angular CLI和Angular本身，但都没有用。

我运行以下命令来打开一个本地主机：

ng serve --open

这是我的package.json：

{
  "name": "fqm19",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "deploy": "node deploy"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^8.0.2",
    "@angular/cdk": "^7.3.7",
    "@angular/common": "~8.0.2",
    "@angular/compiler": "~8.0.2",
    "@angular/core": "~8.0.2",
    "@angular/fire": "^5.2.1",
    "@angular/forms": "~8.0.2",
    "@angular/platform-browser": "~8.0.2",
    "@angular/platform-browser-dynamic": "~8.0.2",
    "@angular/router": "~8.0.2",
    "angular-sortablejs": "^2.7.0",
    "angular2-fontawesome": "^5.2.1",
    "bootstrap": "^4.3.1",
    "cookieconsent": "^3.1.0",
    "core-js": "^2.5.4",
    "firebase": "^6.1.1",
    "font-awesome": "^4.7.0",
    "ng2-adsense": "^5.4.2",
    "ngx-bootstrap": "^4.0.1",
    "ngx-cookieconsent": "^2.2.0",
    "ngx-toastr": "^10.0.4",
    "pdfmake": "^0.1.55",
    "rxjs": "~6.5.2",
    "sortablejs": "^1.9.0",
    "tslib": "^1.9.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.800.0",
    "@angular/cli": "~8.0.3",
    "@angular/compiler-cli": "~8.0.2",
    "@angular/language-service": "~8.0.2",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "^5.0.1",
    "ftp-deploy": "^2.3.3",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.4.5"
  }
}

有谁能解释一下这个变化吗？还是我错过了什么？哦，是的，我已经丢弃了我所有的节点模块，并重新安装了一切。还是老样子。

Angular.json：

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "fqm19": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {},
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.app.json",
            "assets": [
              "src/favicon.ico",
              "src/ads.txt",
              "src/assets"
            ],
            "styles": [
              "node_modules/bootstrap/dist/css/bootstrap.min.css",
              "node_modules/cookieconsent/build/cookieconsent.min.css",
              "node_modules/ngx-toastr/toastr.css",
              "src/styles.css",
              "node_modules/font-awesome/css/font-awesome.css"
            ],
            "scripts": [
              "node_modules/cookieconsent/build/cookieconsent.min.js"
            ],
            "es5BrowserSupport": true
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "fqm19:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "fqm19:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "fqm19:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.spec.json",
            "karmaConfig": "src/karma.conf.js",
            "styles": [
              "src/styles.css"
            ],
            "scripts": [],
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ]
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json",
              "src/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "fqm19-e2e": {
      "root": "e2e/",
      "projectType": "application",
      "prefix": "",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "fqm19:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "fqm19:serve:production"
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": "e2e/tsconfig.e2e.json",
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    }
  },
  "defaultProject": "fqm19",
  "schematics": {
    "@schematics/angular:component": {
      "styleext": "css"
    }
  }
}

Answer 1

检查angular.json文件是否包含sourceMaps标志，以及开发时是否将其设置为true。默认情况下，它在生产中是禁用的(跳过生产中的调试是有意义的)，但可能有人在您不知情的情况下更新了您的angular.json配置。