Failed to execute 'insertBefore' on 'Node': The new child element contains the parent
(in promise) TypeError: fullscreen error
at Object.eval (vue-fullscreen.min.js?5208:1:1)
at new Promise (<anonymous>)
at Object.request (vue-fullscreen.min.js?5208:1:1)
at Object.request (vue-fullscreen.min.js?5208:1:1)
at Object.toggle (vue-fullscreen.min.js?5208:1:1)
at HTMLSpanElement.s [as _onClickFullScreen] (vue-fullscreen.min.js?5208:1:1)
this is my bug
mycode