Add sanity check for socketId

[0xn3bs]

This fixes the jQuery interceptor. We don't want to add the X-Socket-Id header if the socketId is undefined.

This bug managed to break the Google Maps API through jQuery.

[bbashy]

I'm getting this error and just wondering if it's related?

XMLHttpRequest cannot load https://maps.googleapis.com/maps/api/geocode/json?address=someaddress&key=keyhere.
Request header field X-Socket-Id is not allowed by Access-Control-Allow-Headers in preflight response.

[morloderex]

@bbashy It might be because jquery.ajaxSetup is global setup of the .ajax method....

[bbashy]

@morloderex And so now every ajax call is now including X-Socket-Id header?

I tried commenting out the part where it adds it to the headers and it was still happening.

[morloderex]

@bbashy It seems like it. yes.

[bbashy]

Getting this as well just because Echo is loaded.

Request header field Access-Control-Allow-Origin is not allowed by Access-Control-Allow-Headers in preflight response