This is what I found on the internet:
When using the get method to send data to an HTTP server, the amount of data that can be sent is limited by the maximum length of a URL. In this case the URL cannot be longer than 2048 bytes.
Quote:
When using the post method, there is no theoretical limit to the amount of data that can be sent to the HTTP server. The amount of data may be constrained by the physical limits of the client computer. When using the get method to send data to an HTTP server, the amount of data that can be sent is limited by the maximum length of a URL. In this case the URL cannot be longer than 2048 bytes.
