bug#42431: 28.0.50; browse-url-of-dired-file confusing messaging

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> (defun find-file-noselect-1 (buf filename nowarn rawfile truename number)
>> 
>> [...]
>> 
>>        (condition-case ()
>>            (let ((inhibit-read-only t))
>>              (insert-file-contents-literally filename t))
>>          (file-error
>>           (when (and (file-exists-p filename)
>>                      (not (file-readable-p filename)))
>>             (kill-buffer buf)
>>             (signal 'file-error (list "File is not readable"
>>                                       filename)))
>
> Is this because file-readable-p returns nil for file:// URLs?

That's the direct cause of the message, but the underlying reason is
that insert-file-contents-literally signalled a file-error here (after
inserting the contents).  I haven't yet chased down why.

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