Why isn't copy function available?

We have blocked all the sites from accessing your clipboard. Clipboard access has always presented a security concern for browsers. Without proper permissions, a page could secretly copy malicious content to the clipboard. Even though with our remote browser technology, pasting malicious content to Puffin Incognito Browser wouldn't cause any danger to your local device, however, we can not guarantee your security if the malicious content is being pasted outside Puffin Incognito Browser. Therefore, we have blocked copy function in order to keep our users from any malicious attack.