robots.txt is not auto generated.

[nicola.peluchetti]

If i have no robots.txt in my wordpress install and visit the robots.txt file in the browser, nothing is generated and a 404 is returned. No plugin installed, no permalinks enabled.
I've looked at the code and there doesn't seem to be any check for crawler user agent and i've got an old site in wordpress 3.5.1 which actually works.
I was trying to test a function that adds my rules to robots.txt.
To reproduce, simply try to visit the robots.txt file in your browser.
If i force it in query.php by returning true from is_robots, also a notice appears.

[nicola.peluchetti]

404

[nicola.peluchetti]

working

[nicola.peluchetti]

notice when forced

[nicola.peluchetti]

Sorry i meant "Pretty permalinks" enabled, don't know how to change the body of the ticket-

[SergeyBiryukov]

WordPress only responds to a robots.txt request when installed at the root of a domain:
tags/3.9.1/src/wp-includes/rewrite.php#L1551​.

[ocean90]

See also ​Placement of the robots.txt file by Google.

[dd32]

robots.txt is only valid at the root of a domain, when WordPress is installed in a sub directory (and not using a root domain as the home_url) then robots.txt shouldn't be served.