CORS Problemas

[Rodrigo Carlstrom]

Good morning people! I'm trying to make an HTTP call to the Camunda BPM Restore API (apache-tomcat-9.0.5) via Angular 6, but it is giving the following error:

Access to XMLHttpRequest at 'http://localhost:8080/engine-rest/process-definition/key/createUser/start' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
user.service.ts:79 Http failure response for (unknown url): 0 Unknown Error

I've already started chrome with --disable-web-security. Already tried with an extension:

But I can not get out of the dilemma.
Would anyone have a tip?

[Sander Elias]

Hi Rodrigo,

CORS is a server-side setting. Nothing you can do in your app to circumvent that, other as using a cors proxy.

have a  look at this.

Regards

Sander

[Rodrigo Carlstrom]

Hi Sander, thank you for your response. I did the setup on

I did the setup on C: \ CamundaBPM \ camunda-bpm-tomcat-7.9.0 \ server \ apache-tomcat-9.0.5 \ webapps \ engine-rest \ WEB-INF \ web.xml but the problem continues. :(

[Sander Elias]

Hi Rodrigo,

As I don't have any experience with tomcat, I can't help you. Try finding someone that can help you with the tomcat setup. You can not fix this from the client side.

Regards

Sander

[Rodrigo Carlstrom]

ll right, thank you anyway! 

If anyone has any tips, my thanks!

Rodrigo Carlstrom

Black Belt (Lean Six Sigma)
Especialista em BPM

PMP® - Project Management Professional

ID Number: #1272965

Celular: (11) 9.4114-9380

Whatsapp: (19) 9.8116-8066

Skype: rodrigocarlstrom

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[Tito]

try to change all localhost references to 127.0.0.1