Jabber custom tab - get methods doesn't works

[mehdi.hajar3]

Hello,

I created a custom tab and I added a webb app. The problem that I noticed is that the get methods works only one time. To make it work again I have to close Jabber and reopen it...

I don't have this problem with post methods..

A solution is to replace my get by post, but maybe some one has a better idea ?

[dstaudt]

Can you provide some additional detail on what you're attempting to do, any HTML/JS code, and the specific error/symptom..?

[mehdi.hajar3]

I want to get data from an API, here some  relevant code:

Html:

<div *ngFor='let client of client' [routerLink]="['/detail', client.tel]">- {{client.firstName}}

  {{client.lastName}}

</div>

JS (Angular2):

getClients(): Promise<Client[]> {

  let url = 'http://localhost:8080/clients';

  return this.http.get(url).toPromise().then(response => response.json().clients as Client[]);

}

The symptom is clear, the request does'nt go to the API more than one time per Jabber session...

If I replace the http.get(url) by http.post(url,{}) it works

[dstaudt]

Interesting...

Any chance your server is indicating via headers (i.e. Expires) that the URL can be cached?

Does this only occur with Angular2?  Does substituting a more traditional XHTTP request work?

At the end of the day, Jabber just provides a container where the OS's web browser control is given a URL and space to render its output - it's possible that quirks of the system browser may be at play here

[mehdi.hajar3]

Thanks to your answer as was able to solve the issue.

The Url was cached, so in my server I added this line : response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");

Thank you for your help !