When she is shopping on line the page [after a short time] the window will close leaving a black screen with a searching circle and it goes back to her home page.
Sounds like a crash/respring (possibly due to running out of memory).
What iPad model does she have and what version of iOS is it running? Also, are there any apps in the background and are there many tabs open in Safari?
When she is shopping on line the page [after a short time] the window will close leaving a black screen with a searching circle and it goes back to her home page.