use document for context

[rcfcu2000]

The mainframe_context may not work in all cases, in my case, the html page has js function which triggers a pop up div, and present() could not find the element, my investigation shows that mainframe_context is the cause of this problem.

If I use:
document.evaluate('//*[@Class="bosschat-chat-input chat-global-message boss-chat-editor-input"]',mainframe_context,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null).snapshotLength

length is 0

document.evaluate('//*[@Class="bosschat-chat-input chat-global-message boss-chat-editor-input"]',document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null).snapshotLength

length is 1

and mainframe_context is different than document