add CORS handling

bbpay.py

@@ -4,6 +4,7 @@ from os import getenv
 from oauthlib.oauth2 import BackendApplicationClient
 from requests_oauthlib import OAuth2Session
 from flask import Flask, request
+from flask_cors import CORS
 from flask_restful import Resource, Api
 from eth_abi.packed import encode_packed
 import eth_account
@@ -16,6 +17,7 @@ from eth_utils import to_wei
 load_dotenv()
 
 app = Flask(__name__)
+CORS(app)
 api = Api(app)
 
 class BBPay(Resource):

requirements.txt

@@ -3,6 +3,7 @@ oauthlib
 requests-oauthlib
 flask
 flask-restful
+flask-cors
 eth-abi
 eth-account
 eth-hash[pycryptodome]