[undertow-dev] exchange.getResponseSender().send issues

I'm having a very strange problem sending a generated HTML file back to the browser using `exchange.getResponseSender().send(s)`. It seems to work fine if the content is a short bit of text like "Hello World", but the content is 144,772 bytes and if I use Curl to test it I get a 200 OK, but it says the Content-Length is 0 and no content comes back. If I set the content to a short String like I said, then the Content-Length is properly set and the content comes back like expected. Should I not be using `exchange.getResponseSender().send` for large amounts of text? I just updated to 1.4.10.Final hoping that it was a bug that was fixed since 1.4.8.Final, but it's still happening. Any insights would be greatly appreciated.