Fix misleading "File exists, but cannot be read" in browse-url-emacs

* src/fileio.c (Finsert_file_contents): Don't signal an error
about not being able to open the file when we're fetching things
via handlers -- in that case, modtime isn't necessarily set, and
if there's a handler, it should take care of this (bug#42431).

diff --git a/src/fileio.c b/src/fileio.c
index dd7f85ec97f5b16bc7fbed30c7f822545b37a8ca..a238889803493196e14b3e7142fa82aa68095c80 100644 (file)
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -5000,7 +5000,7 @@ by calling `format-decode', which see.  */)
       unbind_to (count1, Qnil);
     }
 
-  if (!NILP (visit) && current_buffer->modtime.tv_nsec < 0)
+  if (NILP (handler) && !NILP (visit) && current_buffer->modtime.tv_nsec < 0)
     {
       /* Signal an error if visiting a file that could not be opened.  */
       report_file_errno ("Opening input file", orig_filename, save_errno);