Firefox ignores response header Content-Type
I have a configured nginx server returning the following headers when serving plain, non-UTF encoded text files.
Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline
When the text files contain ANSI escape sequences (Standard ECMA-48) Firefox will often ignore the server Content headers to use a guess determined by the file extension. But the guess is often wrong and forces the browser to download the file instead of displaying it in the tab.
Cause: document Type: application/x-vnd.mozilla.guess-from-ext; charset=ISO-8859-1
Is this intended behavior and is there anything else I can do to encourage Firefox to display the text file in a browser tab? As this is not the same behavior with other browser engines such as Blink or Trident.
6 sample files, all refuse to display in Firefox except 'r5-WTF4.ans' https://retrotxt.com/e/
benszone द्वारा
All Replies (2)
cor-el said
See:
Hi thanks, but it seems with Firefox nosniff only works with script or css, but not text/plain.
Note: nosniff only applies to "script" and "style" types.
nosniff
Blocks a request if the requested type is
"style" and the MIME type is not "text/css", or "script" and the MIME type is not a JavaScript MIME type.