Add CORS headers to server

server/requirements.txt

@@ -2,3 +2,4 @@ toml==0.9.2
 requests==2.18.1
 whoosh==2.7.4
 flask==0.12.2
+flask-cors==3.0.3

server/wac/rest.py

@@ -2,16 +2,20 @@
 
 from flask import Flask
 from flask import jsonify
+from flask_cors import CORS, cross_origin
 from whoosh.qparser import MultifieldParser
 from whoosh import index
 
 from . import api
 
 app = Flask(__name__)
+cors = CORS(app)
+app.config['CORS_HEADERS'] = 'Content-Type'
 
 ix = index.open_dir("data")
 
 @app.route("/search/<query>")
+@cross_origin()
 def search(query):
     with ix.searcher() as searcher:
         query = MultifieldParser(["title", "description"], ix.schema).parse(query)