commit 15701e9: [Fix] Html: Fix the case where only bgcolor is explicitly set

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2021-10-11 15:26:37 +0100
URL: https://github.com/rspamd/rspamd/commit/15701e9dc249bbcd4d5a5a4ada8685d708086e1b (HEAD -> master)

[Fix] Html: Fix the case where only bgcolor is explicitly set

---
 src/libserver/html/html_block.hxx | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/libserver/html/html_block.hxx b/src/libserver/html/html_block.hxx
index 24a8ad3e5..4a69b7325 100644
--- a/src/libserver/html/html_block.hxx
+++ b/src/libserver/html/html_block.hxx
@@ -267,9 +267,11 @@ struct html_block {
 			}
 		}
 		else if (bg_color_mask) {
-			if (is_similar_colors(rspamd::css::css_color::black(), bg_color)) {
-				visibility_mask = html_block::transparent_flag;
-				return;
+			if (bg_color.alpha > 10) {
+				if (is_similar_colors(rspamd::css::css_color::black(), bg_color)) {
+					visibility_mask = html_block::transparent_flag;
+					return;
+				}
 			}
 		}