<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>get_capture</title> </head> <body> <h3>スペースキー押下でキャプチャ取得</h3> <video id="video" width="640" height="480" autoplay></video> <canvas id="canvas" class="canvas-wrapper"></canvas> </body> <script src="{{url_for('static', filename='main.js')}}"></script> <style> /*