opening index.html via file: does not work on chrome/safari

webxdc / hello

Sample project with a simple implementation of the webxdc read and write APIs

The Unlicense

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opening index.html via file: does not work on chrome/safari #4

Closed r10s closed 2 years ago

r10s commented 2 years ago

the communication between simulated peers do work on firefox using localhost or file:.

for chrome/safari, this only works for localhost currently.

check, if we can improve that, otherwise document the issue.

r10s commented 2 years ago

reason seems to be different same-origin-policies used on firefox and chrome/safari:

firefox treats windows using the same file: url as the same origin
chrome/safari treat windows using the same file: url as different origins

only windows with the same origin can access the other window objects as we're doing currently. postMessage seems not be able to fix that, however, localStorage works.