CORS issue while calling yammer rest API with azure ad token from the angular app.
Request URL: https://api.yammer.com/api/v1/messages/my_feed.json?threaded=extended&limit=3
Referrer Policy: no-referrer-when-downgrade
cache-control: max-age=0, private, must-revalidate
content-encoding: gzip
content-language: en-US
content-security-policy-report-only: default-src 'self'; connect-src 'self' *.skype.com *.yammer.com *.microsoft.com wss://*.rt.yammer.com/cometd/ *.skypeassets.com api.tenor.com suite.office.net portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; frame-src 'self' *.bing.com *.live.com *.lync.com *.microsoft.com *.microsoftonline.com *.office.com *.office365.com *.outlook.com *.windows.net *.sharepoint.com portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; font-src 'self' *.assets-yammer.com *.msocdn.com *.microsoft.com *.skype.com *.sharepointonline.com portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; img-src 'self' data: *.assets-yammer.com *.msocdn.com *.microsoft.com *.microsoftonline.com *.office.com *.office365.com thumbnails.yammer.com *.lync.com *.skype.com *.msecnd.net media.tenor.com portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; media-src 'self' *.skype.com *.yammer.com *.assets-yammer.com *.msocdn.com portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; script-src 'self' *.rt.yammer.com 'unsafe-inline' 'unsafe-eval' *.office.com *.assets-yammer.com *.msocdn.com *.microsoft.com *.skype.com portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; style-src 'self' 'unsafe-inline' *.assets-yammer.com *.msocdn.com *.microsoft.com *.microsoftonline.com *.office.com *.office365.com *.outlook.com *.skype.com suite.office.net portal.partner.microsoftonline.cdnsvc.com prod.msocdn.com prod.msocdn.de r1.res.office365.com shellux.msocdn.com webshell.suite.office.com webshell.suite.office.de webshell.suite.partner.microsoftonline.cn; report-uri /__csp__/reports
content-type: application/json; charset=utf-8
date: Wed, 19 Aug 2020 07:47:22 GMT
etag: W/"e4d119125b30b71d0521207a6fb93e8d"
nel: {"report_to":"default","max_age":3600,"success_fraction": 0.001}
p3p: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
report-to: {"max_age":3600,"endpoints":[{"url":"https://mmay.nelreports.net/api/report?cat=yammer-prod_central_1_static"}]}
status: 200
strict-transport-security: max-age=31536000; includeSubDomains; preload
strict-transport-security: max-age=1234513412313; includeSubDomain
vary: Accept-Encoding
x-b3-traceid: 7d08752fe74cdd8b
x-cell-id: 2
x-client-application-id: 47518
x-content-type-options: nosniff
x-date: 1597823243137
x-frame-options: SAMEORIGIN
x-lodbrok-cell: prod_central_1_static-c2
x-msedge-ref: Ref A: D011C63932FB4D60AE98AB5597693F2B Ref B: MAA01EDGE0618 Ref C: 2020-08-19T07:47:22Z
x-network-id: 5c8085d9-1e88-4bb6-b5bd-e6e6d5b5babd
x-request-id: 2aa2565f-7c83-45cc-8373-bf5c0c3a8fd5
x-robots-tag: none
x-runtime: 0.742599
x-xss-protection: 1; mode=block
x-yammer-serve: Azure-Workfeed-Nginx
@ZaklinBelfor You have to set callback url while registering the app. Please go through this documentation Step 1: App Registration · Yammer Developer Site
