Looks like problem in Safari for latest version with big xml

Hello! Is the xml parser in core in 3.7 version and in current it different? Seems like in Safari with big value xml over 10Mb we have error looks like dhtmlx alert with incoming xml.
Attach the print screen.

I found the solution - in the dtmlXMLLoaderObject.prototype.getXMLTopNode function near end we have condition
“if (!this._retry&&_isIE){”
replace with “if (!this._retry) {”
like it was been in scheduler 3.7.

Developers, please check this, may be the bug.