764388 - "http://www." is appended to the string entered in the location bar, when it contains at least one dot , even if the string after the dot is obviously not a domain name

Status: RESOLVED DUPLICATE of bug 66183

(Core :: DOM: Navigation, defect)

Description

[Ioana (away)]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:14.0) Gecko/20100101 Firefox/14.0
Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20100101 Firefox/14.0
Mozilla/5.0 (Windows NT 6.1; rv:16.0) Gecko/16.0 Firefox/16.0a1 (20120613030535)

STR:
1. Enter any other text with at least one dot in it in the location bar (e.g. "trailers.apple"). Make sure the text after the dot is not a valid domain name (com, net, org, us, uk etc).
2. Press Enter.

Expected Results: The Google search web page is opened, with the results for a search by the string entered in the Location bar.

Actual Results: "http://www." is appended to the entered string. Since http://www.trailers.apple doesn't exist, a "Server not found" error is displayed. This issue only reproduces when the string entered in the URL bar has at least on dot in it.

This bug is not a regression since it also reproduces on Firefox 4.0.

Comment 1

[Boris Zbarsky [:bzbarsky]]

www.trailers.apple can in fact be a valid domain name depending on the system's DNS configuration....  The heuristic used here is just that: a heuristic.

Comment 2

[Ioana (away)]

This issue reproduces with strings that end in a dot too. When you type "asdf." in the URL bar and press Enter, it tries to get you to "http://www.asdf.".

Comment 3

[O. Atsushi (Torisugari)]

> This bug is not a regression since it also reproduces on Firefox 4.0.
Yes, it seems extremely aged. But the trend shows more and more people have been reporting it (bug 746852 and bug 764007) only recently. Maybe it's because the default behavior shifted from DNS error dialog to DNS error page, and it might make people more annoyed...