Ignore empty page title for tab labels

When a page has an empty title like <title></title>, don't use it to set
the tab label, but instead rely on the default tab label, which is
computed from the file name.

1 files changed, 7 insertions, 3 deletions

diff --git a/src/html.cc b/src/html.cc
index c6aa5b5e..5e1f6ba7 100644
--- a/src/html.cc
+++ b/src/html.cc
@@ -1706,10 +1706,14 @@ static void Html_tag_open_title(DilloHtml *html, const char *tag, int tagsize)
  */
 static void Html_tag_close_title(DilloHtml *html)
 {
+   /* title is only valid inside HEAD */
    if (html->InFlags & IN_HEAD && html->Num_TITLE == 1) {
-      /* title is only valid inside HEAD */
-      a_UIcmd_set_page_title(html->bw, html->Stash->str);
-      a_History_set_title_by_url(html->page_url, html->Stash->str);
+      /* Ignore empty titles: <title></title> */
+      char *title = html->Stash->str;
+      if (!title || title[0] == '\0')
+         return;
+      a_UIcmd_set_page_title(html->bw, title);
+      a_History_set_title_by_url(html->page_url, title);
    }
 }