const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({
devtools: true,
ignoreHTTPSErrors: true
});
const page = await browser.newPage();
page.setUserAgent('Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1');
page.setViewport({
width: 375,
height: 667,
isMobile: true
});
await page.goto('https://google.com', {
waitUntil: 'networkidle2'
});
await page.evaluate(() => {
console.log(window);
})
})();
当我在setViewport()中设置isMobile:true时,chromium正常打开,但进程报以下错误:
(node:13360) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: net::ERR_ABORTED at https://google.com
(node:13360) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
如何处理?
最佳答案
您刚刚错过了 setUserAgent
方法和 setViewport
方法的 await
。
(async () => {
const browser = await puppeteer.launch({
devtools: true,
ignoreHTTPSErrors: true
});
const page = await browser.newPage();
await page.setUserAgent('Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1');
await page.setViewport({
width: 375,
height: 667,
isMobile: true
});
await page.goto('https://google.com', {
waitUntil: 'networkidle2'
});
await page.evaluate(() => {
console.log(window);
})
})();
此外,您可以用 emulate
方法替换这些方法。
emulate
方法是调用两个方法的快捷方式:
- page.setUserAgent(userAgent)
- page.setViewport(视口(viewport))
不要忘记从 puppeteer 导入设备对象。查看 devices 的完整列表.
const devices = require('puppeteer/DeviceDescriptors');
await page.emulate(devices['iPhone 6'])
所以,你的最终脚本应该是:
const puppeteer = require('puppeteer');
const devices = require('puppeteer/DeviceDescriptors');
(async () => {
const browser = await puppeteer.launch({
devtools: true,
ignoreHTTPSErrors: true
});
const page = await browser.newPage();
await page.emulate(devices['iPhone 6'])
await page.goto('https://google.com', {
waitUntil: 'networkidle2'
});
await page.evaluate(() => {
console.log(window);
})
})();
关于node.js - puppeteer 设置 "isMobile:true"导致 "UnhandledPromiseRejectionWarning",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/57356255/