Fall back from HEAD to GET in case of a HTTP 405

[jhermsmeier]

For some reason Amazon doesn't allow HEAD requests:

$ http-traceroute 'http://goo.gl/IlWG8U'
[301] HTTP/1.1 HEAD http://goo.gl/IlWG8U (272 ms)
[405] HTTP/1.1 HEAD https://www.amazon.es/dp/B00SDLIGC2?adid=0HN1KKBYR6N811ZTCRMM&camp=3634&creative=24822&creativeASIN=B00SDLIGC2&linkCode=as4&tag=atalaya-21 (cookies: 10) (299 ms)
Trace finished in 584 ms using 1 hop

Would it make sense to fall back to GET to get a full trace in these cases?

[watson]

Yeah, that might be a good idea.

Maybe we should even have a mode where it always uses GET as some servers might not respond to GET and HEAD in the same way.