master 4cb1e30 1/2: Fix default value in checkboxes in eww

[Lars Ingebrigtsen]

branch: master
commit 4cb1e30988cc5c30bfc27a393c9b616870a3fc9e
Author: Nicolas Graner <nicolas.graner@universite-paris-saclay.fr>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Fix default value in checkboxes in eww
    
    * lisp/net/eww.el (eww-submit): Checked checkboxes need a default
    value (bug#43542).
    
    Copyright-paperwork-exempt: yes
---
 lisp/net/eww.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/net/eww.el b/lisp/net/eww.el
index 8918be0..1ed87c6 100644
--- a/lisp/net/eww.el
+++ b/lisp/net/eww.el
@@ -1634,7 +1634,7 @@ See URL 
`https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input'.")
          (cond
           ((member (plist-get input :type) '("checkbox" "radio"))
            (when (plist-get input :checked)
-             (push (cons name (plist-get input :value))
+              (push (cons name (or (plist-get input :value) "on"))
                    values)))
           ((equal (plist-get input :type) "file")
             (when-let ((file (plist-get input :filename)))