Composite an HTML overlay by serializing its DOM into an <svg><foreignObject> data URL and drawing the resulting Image. The data URL decodes synchronously in modern browsers; if the decode hasn't happened yet (rare), we log and skip the frame.
<svg><foreignObject>
Composite an HTML overlay by serializing its DOM into an
<svg><foreignObject>data URL and drawing the resulting Image. The data URL decodes synchronously in modern browsers; if the decode hasn't happened yet (rare), we log and skip the frame.