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bug#33002: 26.1; EWW sends unspecific "Accept: */*" header


From: Winston Weinert
Subject: bug#33002: 26.1; EWW sends unspecific "Accept: */*" header
Date: Wed, 10 Oct 2018 00:11:03 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

I noticed EWW sends header "Accept: */*", which appears to prevent
HTTP servers that provide multiple content types from picking a sensible
response content type.

More information about the Accept header with a list of RFCs at the
bottom of the page can be found here [1]. For comparison lynx sends a
more specific header, which indicates It'd prefer common web content
types before anything else [2]. I experienced this particular bug when
browsing [3], which uses the Accept header to determine when to show the
built-in API Explorer. In a web browser it shows a HTML form to interact
with the API, however actual API clients use "Accept: application/json"
or similar to get the desired format.


Regards,
Winston Weinert


[1]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept
[2]: "Accept: text/html, text/plain, text/sgml, text/css, application/xhtml+xml, */*;q=0.01"
[3]: https://restframework.herokuapp.com/


In GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2018-09-08 built on snowcrash
Windowing system distributor 'The X.Org Foundation', version 11.0.11905000
System Description:     Gentoo Base System release 2.4.1

Recent messages:
C-c C-g is undefined
Quit
Contacting host: duckduckgo.com:443
ImageMagick error: insufficient image data in file `/tmp/foo.ico' @ error/icon.c/ReadICONImage/375
Contacting host: localhost:8000
Making completion list... [3 times]
Note: file is write protected
Mark saved where search started
Quit
delete-backward-char: Text is read-only

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