"the Fusion API appears to have been developed
with the intention for back-end use as there is no current "approved" method
of using Fusion via JavaScript. Accordingly, Ajax requests from the front-end
result in CORS (Cross Origin Resource Sharing violation) issues, as neither
CORS headers nor the JSONP workarounds are supported by Fusion (at least not
at the time of this writing)."
We will have to go with another API. CORS issue.
https://github.com/builderLabs/Yelp-Fusion-JavaScript/blob/master/yelpFusionJS.md