The canvas finding logic is broken, use this for sendString() if you're using novnc and it'll work:

function sendString(text) {

        var el = document.querySelector("#noVNC_container canvas")
        text.split("").forEach(x=>{
            setTimeout(()=>{
                 var needs_shift = x.match(/[A-Z!@#$%^&*()_+{}:\"<>?~|]/)
                 let evt
                 if (needs_shift) {

                     evt = new KeyboardEvent("keydown", {keyCode: 16})
                     el.dispatchEvent(evt)
                     evt = new KeyboardEvent("keydown", {key: x, shiftKey: true})
                     el.dispatchEvent(evt)
                     evt = new KeyboardEvent("keyup", {keyCode: 16})
                     el.dispatchEvent(evt)

                 }else{
                     evt = new KeyboardEvent("keydown", {key: x})
                }
                el.dispatchEvent(evt)
            }, 100)
        })

    }

感谢作者的代码！

受此启发，我在 Claude 的帮助下基于原代码开发了一个增强版的 PVE 粘贴输入工具。 主要改进包括：

1. 交互优化：增加了图形化界面（模态框），支持实时字符统计。
2. 核心机制：重写了键盘事件模拟逻辑，更好地处理 Shift 组合键和特殊符号。
3. 部署方式：除了油猴脚本，还支持 Nginx 注入方式，适合反向代理场景。

⚠️ 说明：目前项目文档和界面仅支持中文。

项目地址：https://github.com/cjpjxjx/pve-paste-input

Thanks for the code!

Inspired by this, I developed an enhanced PVE paste input tool with the help of Claude. Key improvements include:

1. Better UI: Added a graphical interface (modal dialog) with real-time character counting.
2. Core Mechanism: Rewrote the keyboard event simulation logic for better handling of Shift keys and special symbols.
3. Deployment: Supports both Tampermonkey script and Nginx injection (suitable for reverse proxy setups).

⚠️ Note: The project documentation and interface are currently in Chinese only.

Repo: https://github.com/cjpjxjx/pve-paste-input