출처 https://kipit.cc/

<script id="allow-copy_script"> (function agent() { let isUnlockingCached = false const isUnlocking = () => isUnlockingCached document.addEventListener('allow_copy', event => { const { unlock } = event.detail isUnlockingCached = unlock }) const copyEvents = [ 'copy', 'cut', 'contextmenu', 'selectstart', 'mousedown', 'mouseup', 'mousemove', 'keydown', 'keypress', 'keyup', ] const rejectOtherHandlers = e => { if (isUnlocking()) { e.stopPropagation() if (e.stopImmediatePropagation) e.stopImmediatePropagation() } } copyEvents.forEach(evt => { document.documentElement.addEventListener(evt, rejectOtherHandlers, { capture: true, }) }) })()