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In a Chrome Extension content script, must I wait for document.ready before processing the document?（2个答案）
8天前关闭
我正在开发一个Chrome扩展程序，我有以下文件。
但是当我打开https://example.com/时，h1标题没有更新。
我在开发控制台中没有看到任何错误。我错过了什么？
manifest.json

{
    "manifest_version": 3,
    "name": "Print Hello",
    "version": "1.0",
    "icons": {
        "48": "images/icon-48.png"
    },
    "action": {
        "default_icon": {
            "48": "images/icon-48.png"
        },
        "default_title": "Print Hello"
    },
    "content_scripts": [
        {
            "matches": ["https://example.com/"],
            "js": ["./scripts/jquery.min.js", "./scripts/print_hello.js"]
        }
    ],
    "host_permissions": [
        "https://example.com/"
    ]
}

print_hello.js

function print_hello() {
    document.querySelector("div h1").innerText = "Hello!"
}
$(document).on("load", print_hello)