Fix Access-Control-Allow-Origin in WCF Tutorial

[ehavelaarsnz]

I worked through Tutorial to easily create a SOAP-based client/server app in OpenSilver (WCF) and it ran ok from the Simulator target but not the Web target.

The example Global.asax has:

    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "http://localhost:55591");

but my client used port 55592. Perhaps the documentation would be better to suggest:

    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");

[avdynut]

The star wildcard will not work, it is described in this section: https://doc.opensilver.net/documentation/in-depth-topics/wcf-and-webclient.html#1-if-you-are-using-a-soap-web-service

[ehavelaarsnz]

@avdynut writes:

The star wildcard will not work, it is described in this section: https://doc.opensilver.net/documentation/in-depth-topics/wcf-and-webclient.html#1-if-you-are-using-a-soap-web-service

In that case, shouldn't there be an instruction to update the port number in Global.asax?

[ehavelaarsnz]

In any case, I tried "*" and it does actually work, at least in Edge, Chrome, and Brave. What doesn't work is "http://localhost:*"