(now obsolete) FX vs IE --> cross domain scripting with same host and different ports

[nicknack]

can you be more explicit about what the solution is please?
I'm running both servers on one host. I've specified the hostname/ip in the hosts file. IE allows the connection to Lightstreamer, but Firefox won't. You appear to offer a solution but it isn't clear what it is. What is the 'domain setting' for example?

[DarioCrivelli]

Sorry, I could have made a more explicit mentioning of the javascript document.domain property.
Hence, the "domain setting" is a javascript feature and setting the domain to a value, like "lightstreamer.com", means issuing

document.domain = "lightstreamer.com";

According to the previous post, in order to have Lightstreamer working on Firefox in your scenario,
both your Push-page and Lightstreamer-generated data page should, in principle, issue:

document.domain = myHostname;

where myHostname is the name with which you access both the Web Server and Lightstreamer Server.

But note that you have no control on Lightstreamer-generated data page.
You can achieve all the above by using the setDomain method from Lightstreamer API, i.e. issuing:

pushPage.context.setDomain(myHostname);

which both sets the domain on the local Push-page and makes the LS Server do the same on its generated data page.

[DarioCrivelli]

I have wholly revised the first post, because some key points were wrong or missing.