使用CustomJS API将HTML转换为PDF并通过Webhook返回

• •HTTP Webhook 端点（n8n 会自动生成）

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      "name": "响应 Webhook",
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      "id": "3f5ba2a7-148d-4921-b2ca-9dee17a2b278",
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      "position": [
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      "parameters": {
        "htmlInput": "<h1>Hello CustomJS!</h1>\n<h2>CustomJS provides the missing toolset for your no-code projects</h2>"
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