Unable to get the desired number of data points with a POST request

I have a url of the following format wherein I’m setting the count to 100 for corresponding number of records: http://www.mockaroo.com/api/generate.json?key=******&include_nulls=true&count=100.
Everything works fine as long as count is not specified in the url. Once I add count parameter to url, the request fails.
Can someone please give me some pointers on this.

Thanks.

Can you replicate it by forking this jsfiddle? That would be very helpful.

I couldn’t replicate the issue in jsfiddle. However, I forgot to mention that I’m using java in my code.

It must be the way that you’re specifying the URL query parameters. Assuming the URL is constructed properly it should work. I suggest double-checking the URL in a debugger.