bug#62574: [PATCH] Preserve peer information for web page in eww-readable

[Eshel Yaron via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Fri, 31 Mar 2023 21:55:09 +0300
>> From:  Eshel Yaron via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>> 
>> Here's a small patch that addresses a slight annoyance in EWW.
>
> Thanks, but can you please post a recipe for showing the effect of
> this change?

Sure:

1. Start emacs -Q
2. Type M-x eww RET https://gnu.org RET
   (any HTTPS site with a valid certificate will do)
3. Notice the green color of the page's title in the header line that
   indicates that the peer's certificate is valid
   (You can also check C-h v header-line-format RET to validate that the
   eww-valid-certificate face is applied to the title portion of the
   header line)
4. Now type R to execute eww-readable
5. Note that the color of page's title in the header line changed (it is no longer green)