On 2017/05/17 02:27, Bob Proulx wrote:
Emmanuel Revah wrote:
Dear Maintainer,
Note also that many sites
have custom 404 pages that may be fooling you.
I'm not sure what you mean. In my case, this is my own website, when a
page doesn't existe I send a 404 header and a message explaining that
the page does not exist. It's quite possible that I've not done this
correctly.
It appears that Chromium does not let me see 404 pages sent from
certain
websites. I've tested using the same website with Firefox, I get the
usual 404
header with the website's 404 page.
With Chromium I do not, I get Chromium's own error page "No webpage
was found
for the web address:".
It would be good to double using wget or curl to verify the headers
and return code completely independently of any of the web browsers.
For example:
$ wget -S -O/dev/null http://www.debian.org/testing-nonexistent
--2017-05-16 18:27:25-- http://www.debian.org/testing-nonexistent
Resolving www.debian.org (www.debian.org)... 149.20.4.15,
140.211.166.202, 128.31.0.62, ...
Connecting to www.debian.org (www.debian.org)|149.20.4.15|:80...
connected.
HTTP request sent, awaiting response...
HTTP/1.1 404 Not Found
Date: Wed, 17 May 2017 00:27:25 GMT
Server: Apache
Content-Location: 404.en.html
Vary: negotiate,accept-language
TCN: choice
X-Content-Type-Options: nosniff
X-Frame-Options: sameorigin
Referrer-Policy: no-referrer
X-Xss-Protection: 1
Last-Modified: Mon, 08 May 2017 05:26:10 GMT
ETag: "1e37-54efc7a13eacc;54f98ecd39bea"
Accept-Ranges: bytes
Content-Length: 7735
X-Clacks-Overhead: GNU Terry Pratchett
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html
Content-Language: en
2017-05-16 18:27:25 ERROR 404: Not Found.
$ wget -S -O/dev/null https://mysite.example.com/non-existant
[...]
HTTP request sent, awaiting response...
HTTP/1.1 404 Not Found
Date: Wed, 17 May 2017 07:26:01 GMT
Server: Apache
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0,
pre-check=0
Pragma: no-cache
Refresh: 0; url=/blah/en/404
Set-Cookie: Blah=5d5ohc17apk5dmhaobu4l7pj62; path=/
Vary: User-Agent
Cache-Control: max-age=290304000, public
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
X-Frame-Options: sameorigin
X-Powered-By: kittens
Content-Length: 0
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8
2017-05-17 09:26:01 ERROR 404: Not Found.
I tried with my website, what are we looking for exactly ? Is it
Content-Length (is this a case of PEBKAC ?) ?
I found one thing that does work: DevTools. Indeed, with devtools open
I can
see the server's 404 page as I should.
I do not understand what you mean when you say "with devtools open".
But again I am not the maintainer but just another user.
When I press "F12" a window opens up with developer tools, while this is
open I get the expected 404 pages served from the web server.
Cheers,
Manu
