master 1e11f6f 1/2: Handle gracefully href="" in base tags in shr

[Lars Ingebrigtsen]

branch: master
commit 1e11f6f59d141f280b50905238a392faffdb134a
Author: Łukasz Stelmach <stlman@poczta.fm>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Handle gracefully href="" in base tags in shr
    
    * net/shr.el (shr-tag-base): shr-parse-base can't handle empty
    strings gracefully.  Don't call it unless href is a non-empty
    string (bug#45355).
---
 lisp/net/shr.el | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lisp/net/shr.el b/lisp/net/shr.el
index 2e5dd5f..1648e56 100644
--- a/lisp/net/shr.el
+++ b/lisp/net/shr.el
@@ -1516,8 +1516,9 @@ ones, in case fg and bg are nil."
       plist)))
 
 (defun shr-tag-base (dom)
-  (when-let* ((base (dom-attr dom 'href)))
-    (setq shr-base (shr-parse-base base)))
+  (let ((base (dom-attr dom 'href)))
+    (when (> (length base) 0)
+      (setq shr-base (shr-parse-base base))))
   (shr-generic dom))
 
 (defun shr-tag-a (dom)