Cannot read property 'style' of null

[Fr1ar]

On closing the fullscreen a JavaScript error is thrown, caused by the empty variable this._fullScreenElement.

User agents:
Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.137 YaBrowser/17.4.1.1026 Yowser/2.5 Safari/537.36

Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36 OPR/36.0.2130.80
Call stack:

Uncaught Error: Cannot read property 'style' of null
at _revertStyles
at _fullScreenChange
at map
at handlers
at add

Problem method:

_revertStyles: function() {
	var $elem = $(this._fullScreenElement);
	for (var property in this.__options.styles) {
                // ############## this._fullScreenElement IS NULL HERE ###################
		this._fullScreenElement.style[property] = this.__savedStyles[property];
	}
	if ($elem.is('body')) {
		// in order to manipulate scrollbar of BODY in Chrome/OPR
		// you have to change 'overflow' property HTML element
		document.documentElement.style.overflow = this.__savedStyles.overflow;
	}
	if (this.__options.toggleClass) {
		$elem.removeClass(this.__options.toggleClass);
	}
}

We're using jquery.fullscreen.min.js 0.6.0 and jQuery 3.2.1

[private-face]

@Fr1ar Could you share a specific code sample where it fails? I could not reproduce it on Opera and Yandex browsers. Could you also check if example/index.html works well on your setup?

[Fr1ar]

Unfortunately I can't reproduce this problem on my PC, I just receive many similar error reports from our clients.