Getting a "no 'access-control-allow-origin' header is present on the requested resource" response for

[Jes A]

I know this has probably been answered before but I can't seem to find a resolution for this issue. 

If I use a CORS plugin with chrome I am able to receive data back, but when I turn it off, I get back a no 'access-control-allow-origin' header is present on the requested resource response. 

The url I'm using is: https://api.meetup.com/find/locations (to get the lat/lon from a zip) and https://api.meetup.com/find/upcoming_events to get a list of upcoming events in an area.

I'm using ajax to send a data object with the parameters for each URL including: 

For locations: 

url: https://api.meetup.com/find/locations,

data: {

'sign': true,

'key': my API Key,

'query': `${searchTerm}`

},

dataType: 'json',

type: 'GET',

crossDomain: true,

success: callback

I then pass the lat/lon from locations into upcoming_events: 

url: https://api.meetup.com/find/upcoming_events,

data: {

'sign': true,

'key': my API Key,

'lat': `${lat}`,

'lon': `${lon}`,

'order': 'time',

'page': '20',

'radius': '30.0',

'text': 'book',

'topic_category': '222'

},

dataType: 'json',

type: 'GET',

crossDomain: true,

success: callback

I'm really at a loss as to what I'm doing wrong. Any ideas on what I need to change to get data back?

Thanks!