Keep child window when parent window is refreshed

Hello,

I’m wondering if there is a way to keep a child window open when the parent window is refreshed. Tried to open this child window in parent’s parent window. But encountered with exception: Object doesn’t support property or method ‘coverBlocker’. Please advice. Thanks!

Hello
Could you provide a demo with detailed explanation, please? We will to help you.
docs.dhtmlx.com/auxiliary_docs__ … pport.html