B4J Question WebApp: Synthax Error on IE

[JanPRO]

Hi,

currently I try to create a WebApp. It works fine on Firefox, however Internet Explorer throws an error: SCRIPT5022: SyntaxError in JQuery.

I have created an example, which demonstrates the issue: -/-

When I remove b4j_connect("/main"); everythink works fine, so the error must be related to B4J.

Any ideas?

Have a nice weekend

Jan

 

[billzhan]

Which IE version?
You are using jQuery 3.1.1 . IE 8 and below is not supported since jQuery 2.x
IE is NOT a modern browser and will not work properly sometimes.


Seems like something is not supported by jQeury.
https://bugs.jquery.com/ticket/12958

 

[JanPRO]

Hi,

I have tested it with IE 11, so there should be no problem.
I don't understand, why the example WebApps work fine, for example: http://basic4ppc.com:51042/guessmynumber/index.html

Jan

 

[Erel]

Use the same JQuery as in that example:

<script src="https://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>

 

[JanPRO]

Now I get an other error: SCRIPT5022: SyntaxError in b4j_ws.js (67,3)

Jan

 

[Erel]

Can you update the online server?

 

[JanPRO]

Yes. Attached you can find the server project.

 

[Erel]

Works fine here:

Try to clear the browser cache.

 

[JanPRO]

I have tested it in private mode.
It's strange: I have started the server on my local pc and it works fine, but when the server is running on the VPS, I get this error ...

Jan

 

[billzhan]

If you change the port to numbers other than 80 (HTTP) and 443(HTTPS), your webapp will work.

    fullpath = ((l.protocol === "https:") ? "wss://" : "ws://") + l.hostname + ":" + l.port + absolutePath;

'If 80 port is used:
fullpath = ws://5.230.156.192:/main

fullpath can't be handled by IE 11.

You have to change b4j_ws.js

fullpath = ((l.protocol === "https:") ? "wss://" : "ws://") + l.hostname + ":" + l.port + absolutePath;

===>

    var porti = l.port;
    if (porti ===""){
        porti = ((l.protocol === "https:") ? 443 : 80);
    }
    fullpath = ((l.protocol === "https:") ? "wss://" : "ws://") + l.hostname + ":" + porti + absolutePath;

 

[JanPRO]

Thank you very, very much
Works like a charm.

Jan