From: "Kevin Carhart" <kevin_carhart@fastmail.fm>
To: edbrowse-dev@edbrowse.org
Subject: proposed postMessage rev
Date: Wed, 22 Dec 2021 19:37:53 -0800 [thread overview]
Message-ID: <a449f94a-5a49-49ad-804c-d0c8ab82dd1e@www.fastmail.com> (raw)
I think we chewed on a couple of changes to postMessage but they aren't in yet. What do you think of the following?
The differences are
(1) we are supposed to consider port (as in, networks, 80, 443, not talking about MessageChannel stuff here) when passing or failing the origin test
(2) setting me.origin = my$win().location;
(3) Adding an else case to the origin test so that if the postMessage can't run, we can be alerted that it didn't
-------------
function postMessage(message,target_origin, transfer) {
var locstring = this.location.protocol + "//" + this.location.hostname + ":" + this.location.port;
if (target_origin == locstring || target_origin == "*") {
var me = new Event;
me.name = "message";
me.type = "message";
me.origin = my$win().location;
me.data = message;
me.source = my$win();
if(transfer) {
me.ports = transfer;
// If these objects had a context, they are now owned by this context.
for(var i = 0; i < transfer.length; ++i)
if(transfer[i].eb$ctx) transfer[i].eb$ctx = eb$ctx;
}
this.onmessage$$queue.push(me);
alert3("posting message of length " + message.length + " to window context " + this.eb$ctx + " ?" +
(message.length >= 200 ? "long" : message)
+ "?");
} else {
// handle a failure here
alert3("postMessage failure: the message " + message + " could not be posted to " + this.eb$ctx + " due to the same-origin rule");
}
}
next reply other threads:[~2021-12-23 3:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-23 3:37 Kevin Carhart [this message]
2022-01-02 18:28 ` Adam Thompson
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