From 79587ed2cfa012137712508fd7e7f657fab75087 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@yhbt.net>
Date: Sat, 15 Feb 2020 09:46:34 +0000
Subject: view: single id="t" for multi-Subject messages

While multi-Subject messages are unfortunate, try not to
generate confusing/invalid HTML with multiple elements
having the same HTML id attribute.
---
 lib/PublicInbox/View.pm | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index dcaee1ae..45c191db 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -651,16 +651,15 @@ sub _msg_page_prepare_obuf {
 	}
 	my @subj = $hdr->header('Subject');
 	if (@subj) {
-		for my $v (@subj) {
+		my $v = ascii_html(shift @subj);
+		obfuscate_addrs($obfs_ibx, $v) if $obfs_ibx;
+		$rv .= 'Subject: ';
+		$rv .= $over ? qq(<a\nhref="#r"\nid=t>$v</a>\n) : "$v\n";
+		$title[0] = $v;
+		for $v (@subj) { # multi-Subject message :<
 			$v = ascii_html($v);
 			obfuscate_addrs($obfs_ibx, $v) if $obfs_ibx;
-			$rv .= 'Subject: ';
-			if ($over) {
-				$rv .= qq(<a\nhref="#r"\nid=t>$v</a>\n);
-			} else {
-				$rv .= "$v\n";
-			}
-			$title[0] //= $v;
+			$rv .= "Subject: $v\n";
 		}
 	} else { # dummy anchor for thread skeleton at bottom of page
 		$rv .= qq(<a\nhref="#r"\nid=t></a>) if $over;
-- 
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