Characters before doctype and after html tag viewed by rexswain http sniffer
doctype, html, sniffer
Solution
In the HTTP header, notice `Transfer Encoding: chunked`.
The hexadecimal number (followed by CR,LF) is the number of characters in the following chunk. In your case, `7add = 31453`. Then 0,CR,LF indicates the end.
Problem
Most of websites when shown with the http://www.rexswain.com/httpview.html viewer display some extra characters before the `DOCTYPE` and also after the ending `HTML` tag. Is this really sent by the server or it's a bug of the rexswain viewer ? EDIT: For example, the first 2 lines of drupalfrance.com are ``` 7add(CR)(LF) <!DOCTYPE·html·PUBLIC·"-//W3C//DTD·XHTML+RDFa·1.0//EN"(LF) ``` and the 4 last lines are ``` </html>(LF) (CR)(LF) 0(CR)(LF) (CR)(LF) ```