Is there any other way other than sending cookie to access a report from JASPER. Angular is not allowing me to add cookies in headers and I am getting 302 CORS policy issue
You have mutiple option.
Best is the go through the document 'JasperReports-Server-REST-API-Reference.pdf' and decide which one you want to implement.
CHAPTER 3 AUTHENTICATION METHODS
• Overview of REST Authentication
• HTTP Basic Authentication
• The login Service
• Login Encryption
• The Security Check
• Using an SSO Token
• Using a Pre-Authentication Token