html - How can a web page robustly switch to another page with client scripting? -

i see in javascript; sending user page , how change page within javascript references using window.location switch new page. possible have similar result including meta tag http-equiv refresh value.

while these work advertised, need continue retry in event host application not available @ time client starts up.

a cross-browser solution particularly appreciated.

update: current solution suggested. initial ajax verify connectivity, followed update of window.location. concern 1 given - status can change between getting response , updating page reference.

i update lower level element body.innerhtml, example, in page body, prefer change top level element cleanly switch on new page.

the purpose of initial page bootstrap long running application uses ajax loop fetch updates of both content , periodic page refreshes. intent able drop off web display panels , have them automatically configure when connected network.