http://agilelens.altervista.org/aframe/index.html
看起来t.substr可能是以前版本的aframe中的一个函数但不再是？
这是错误：
aframe.min.js:115 Uncaught (in promise) TypeError: t.substr is not a function
at Gi.load (aframe.min.js:115)
at Vi.load (aframe.min.js:115)
at init (aframe-overunder-viewer.js:75)
at i.updateProperties (aframe.min.js:296)
at i.module.exports.Component (aframe.min.js:296)
at new i (aframe.min.js:296)
at HTMLElement.value (aframe.min.js:288)
at HTMLElement.value (aframe.min.js:288)
at HTMLElement.Object.create.updateComponents.value (aframe.min.js:288)
at aframe.min.js:288