Enabling CORS

[jriedl17]

Hello. I am creating an ACS ADF App and I want to use a Server which is not on my localhost. I have configured the "app.config.json" file and the "proxy.conf.json" file as described here:'https://community.alfresco.com/community/application-development-framework/blog/2017/06/20/adf-cors-...'. But I still get the Error Messages which you can see in the addings. Do you have any Idea what is wrong in my configurations?

[jriedl17]

Thanks a lot for your answers. 

This issue solved my problem:

 https://community.alfresco.com/thread/234647-how-to-deploy-an-adf-application-on-tomcat-server

[eugenio_romano]

Cool! no problem!

[fcorti]

Can you please share the configuration of the proxy?
Where the ADF app leave?
Which URL are you calling from the ADF ?

In the picture I see the target URL is http://alfresco.mbasoft.at:8080 and it seems to be where the Alfresco instance leaves. Is it also where the ADF leave? If not, where does it leave?

[jriedl17]

1)

proxy.conf.json:

2)

The ADF leaves on my localhost.

3)

I do not directly call URLs. I use the APIService-Methods of ADF to call the Repository of Alfresco.

4) 

On http://alfresco.mbasoft.at:8080 leaves the Alfresco instance and I want to do some requests from my ADF-App running on my localhost

[fcorti]

Not sure about the target value.
Can you please try with http:;//alfresco.mbasoft.at:8080/alfresco?

[jriedl17]

I have tried it with this URL but I get the same Error as before.

[jriedl17]

Do I have to enable CORS if the ADF-App and the Alfresco-Instance leave on the same server? 

[ranjeetsi]

Hi,

I had faced similar situation some time back : please check if this works for you:

On the alfresco backend server - https://community.alfresco.com/external-link.jspa?url=http%3A%2F%2Falfresco.mbasoft.at%3A8080 

you will have to do change in the web.xml to allow a wildcard support for origins.

<init-param>

<param-name>cors.allowOrigin</param-name>

<param-value>*</param-value>

</init-param>

And then - whitelist your fronend url at the web proxy layer - if you have .

Also if you have load balancer , web proxy configured before the backend - you need to have the wildcard * , or your frontend url , so that it does not drop your header at any point.

You can run curl commands on urls at each level web proxy ->load balancer -> alfresco to see where the header is dropped .

Since your error is:

==========================

No 'Access-control-allow-origin" header is present on the requested resource(backend)

Thanks!