justinkook
commented
5 years ago I'm assuming you are using BWC locally on Copay (which runs on http://localhost:8100).
There is a Content-Security-Policy tag in app-template/index-template that you can comment out to disable CORS for localhost testing. CORS blocks localhost which includes http://localhost:8100 but not the iOS and Android build of Copay.
I'm using bitcore-wallet-client node module, which uses api https://bws.bitpay.com/bws/api.
It was working properly yesterday, but today I'm getting error that it is blocked by CORS policy.