chrome angular 5中的滚动问题答案

【问题标题】：scroll issue in chrome angular 5chrome angular 5中的滚动问题
【发布时间】：2018-10-19 15:52:42
【问题描述】：

我是 Angular 5 的新手，我正在用它开发一个网络应用程序。该应用程序在 Firefox 中运行良好，但在 Chrome 中，我收到以下错误：

zone.js:1666 [违规] 向阻止滚动的“鼠标滚轮”事件添加了非被动事件侦听器。考虑将事件处理程序标记为“被动” 使页面更具响应性ˋ

Package.json:

{
  "name": "app",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.2.10",
    "@angular/cdk": "^5.2.5",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/material": "^5.2.5",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/router": "^5.2.0",
    "alertify.js": "^1.0.12",
    "core-js": "^2.4.1",
    "crypto-js": "^3.1.9-1",
    "jquery": "^3.3.1",
    "ng4-geoautocomplete": "^0.1.0",
    "ngx-cookie-service": "^1.0.10",
    "ngx-filter-pipe": "^2.1.0",
    "rxjs": "^5.5.6",
    "socket.io-client": "^2.1.0",
    "ts-md5": "^1.2.4",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "~1.7.4",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "^6.0.108",
    "@types/socket.io-client": "^1.4.32",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "~2.5.3"
  }
}ˋ

【问题讨论】：

您是否向鼠标滚轮事件添加了任何事件侦听器？或者您是否在应用程序的任何位置操作滚动事件？如果是，请显示该代码
@Und3rTow 我已经尝试过这个解决方案，但对我不起作用：document.addEventListener("wheel", function(e) { e.preventDefault(); }, { passive: true });
也许这个答案能解决问题click here。

标签： javascript angular google-chrome angular5

【解决方案1】：

我收到此错误是因为我在我的 angular-cli.json 中包含了 smoothscroll.js，其中包含影响 chrome 中鼠标滚动事件的代码：

var ischrome = /chrome/.test(navigator.userAgent.toLowerCase());
if (ischrome) {
  ssc_addEvent("mousedown", ssc_mousedown);
  ssc_addEvent("mousewheel", ssc_wheel);
  ssc_addEvent("load", ssc_init)
}

删除后，我的应用运行良好。

【讨论】：