full-screen-shot-bookmarklet

fss.js

const capture = async () => {
    const canvas = document.createElement("canvas");
    const context = canvas.getContext("2d");
    const video = document.createElement("video");
  
    try {
      const captureStream = await navigator.mediaDevices.getDisplayMedia();
      video.srcObject = captureStream;
      context.drawImage(video, 0, 0, window.width, window.height);
      const frame = canvas.toDataURL("image/png");
      captureStream.getTracks().forEach(track => track.stop());
      window.location.href = frame;
    } catch (err) {
      console.error('Full page screenshot bookmarklet did not work: ' + err);
    }
  };
  
  capture();