WARNING: Unknown action: hotspot[video].playvideo

hello ，I'm looking forward to your help

I directly wrote "videoplayer" in xml and it can be executed using "playvideo", but the videoplayer I created through js used the same method and reported an error

// js
krpano.call(`addhotspot(video)`)
const pluginConfig = {
  url: '%SWFPATH%/swf/videoplayer.js',
  videourl: '',
  distorted: 'true',
  edge: 'center',
  width: '300',
  height: '300',
  ath: '20',
  atv: '10',
  scale: '1',
  rx: '0',
  ry: '0',
  rz: '0',
  zorder: '101',
  loop: 'false',
  pausedonstart: 'false',
};
// 循环设置插件属性
for (const [key, value] of Object.entries(pluginConfig)) {
  krpano.set(`hotspot[video].${key}`, value);
}
krpano.call(`hotspot[video].playvideo(${filename})`) 

<hotspot name="video" url="%SWFPATH%/swf/videoplayer.js"
videourl=""
distorted="true" edge="center" width="300" height="300"
ath="20" atv="10" scale="1" rx="0" ry="0" rz="0" zorder="101"
loop="false" pausedonstart="false"
/>

krpano.call(`hotspot[video].playvideo(${filename})`) 

Quote from indexofrefraction

Code

const pluginConfig = {
 url: '%SWFPATH%/swf/videoplayer.js',
 videourl: '',
 distorted: true,
 edge: 'center',
 width: 300,
 height: 300,
 ath: 20,
 atv: 10,
 scale: 1,
 rx: 0,
 ry: 0,
 rz: 0,
 zorder: 101,
 loop: false,
 pausedonstart: false,
};

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true !== 'true'

false !== 'false'

Haha，
It's true that the types are not completely equal, but it doesn't solve the problem. I tried and found that videourl must be set before calling playvideo. What's puzzling is, in this case, what's the meaning of the parameters of playvideo