What\'s the best way to send a large data set via a GET request.
GET requests shouldn't exceed 1-4 kilobytes in size due to browser and server limitations. You would have to split your request in chunks to do this.
If the data comes from a form, you could, for example utilize jQuery's .serialize() function to put the data into one string. Then split the string into kilobyte-sized chunks and send it out using Ajax. You would have to have a server-side script that glues the chunks back together, possibly using a unique identifier specified in the Ajax requests.
Some sources on the length limitation: