如何为IE11构建生产Angular8应用程序

我在尝试运行IE11的构建应用程序时遇到了一个问题。当我使用--configuration=es5运行serve时，它会工作。但是我使用--configuration=es5构建—我不使用prod版本。 如何为IE11构建prod版本

我的浏览器列表有“IE 9-11”#对于IE 9-11支持，请删除“not”。”

Mytsconfig.json具有的“目标”：“es5”

Mytsconfig-es5.app.json

{
  "extends": "./tsconfig.app.json",
  "compilerOptions": {
    "target": "es5"
  }
}

"architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            ...
          },
          "configurations": {
            "es5": {
              "tsConfig": "tsconfig-es5.app.json"
            },
            "production": {
              "fileReplacements": [{
                "replace": "src/environments/environment.ts",
                "with": "src/environments/environment.prod.ts"
              }],
              "optimization": true,
              "outputHashing": "none",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [{
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "6kb",
                  "maximumError": "10kb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "charity:build"
          },
          "configurations": {
            "es5": {
              "browserTarget": "charity:build:es5"
            },
            "production": {
              "browserTarget": "charity:build:production"
            }
          }
        },
        ...
    }

Myangular.json

{
  "extends": "./tsconfig.app.json",
  "compilerOptions": {
    "target": "es5"
  }
}

"architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            ...
          },
          "configurations": {
            "es5": {
              "tsConfig": "tsconfig-es5.app.json"
            },
            "production": {
              "fileReplacements": [{
                "replace": "src/environments/environment.ts",
                "with": "src/environments/environment.prod.ts"
              }],
              "optimization": true,
              "outputHashing": "none",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [{
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "6kb",
                  "maximumError": "10kb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "charity:build"
          },
          "configurations": {
            "es5": {
              "browserTarget": "charity:build:es5"
            },
            "production": {
              "browserTarget": "charity:build:production"
            }
          }
        },
        ...
    }

我尝试为tsconfig.app.json添加“编译器选项”：{“目标”：“es5”}，但我为IE11（Google Chrome works）获取了错误消息：

错误Sys.ParameterCountException:Sys.ParameterCountException: 参数计数不匹配

该问题可能是由于Angular的“构建优化器”造成的。我参考并尝试禁用构建优化器，这样它就可以在IE11和Angular 8.0.3中正常工作

您可以运行

ng build--prod--build optimizer=false

，或者将angular.json中

buildOptimizer

的值更改为

false

。然后将dist文件夹中的生产捆绑包部署到web服务器。

问题可能是由于Angular的“build optimizer”。我参考并尝试禁用构建优化器，这样它就可以在IE11和Angular 8.0.3中正常工作

您可以运行

ng build--prod--build optimizer=false

，或者将angular.json中

buildOptimizer

的值更改为

false

。然后将dist文件夹中的生产捆绑包部署到web服务器