将jquery注入到操纵up页面 [英] inject jquery into puppeteer page

问题描述

我正在尝试将jquery注入我的伪造者页面，因为document.querySelector不会为我剪切它:

I'm trying to inject jquery into my puppeteer page because document.querySelector doesn't cut it for me:

async function inject_jquery(page){
  await page.evaluate(() => {
    var jq = document.createElement("script")
    jq.src = "https://code.jquery.com/jquery-3.2.1.min.js"
    document.querySelector("head").appendChild(jq)
  })
  const watchDog = page.waitForFunction('window.jQuery !== undefined');
  await watchDog;
}

结果是大多数情况下超时.有人有解决方案吗?

The result is it mostly times out. Does anyone have a solution?

推荐答案

我已经使用page.addScriptTag注入js文件.

...
await page.addScriptTag({url: 'https://code.jquery.com/jquery-3.2.1.min.js'})
...

page.addScriptTag -文档

使用puppeteer: 0.12.0

import { launch } from 'puppeteer'
(async () => {
    const browser = await launch({headless: false});
    const page = await browser.newPage();
    await page.goto('https://example.com', {waitUntil: 'networkidle'});
    await page.addScriptTag({url: 'https://code.jquery.com/jquery-3.2.1.min.js'});
    await page.close();
    await browser.close();
})();

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