add data-orig-feed-title to generated headline markup

js/Headlines.js

@@ -490,6 +490,7 @@ const Headlines = {
 						id="RROW-${hl.id}"
 						data-article-id="${hl.id}"
 						data-orig-feed-id="${hl.feed_id}"
+						data-orig-feed-title="${App.escapeHtml(hl.feed_title)}"
 						data-is-packed="1"
 						data-content="${App.escapeHtml(hl.content)}"
 						data-rendered-enclosures="${App.escapeHtml(Article.renderEnclosures(hl.enclosures))}"
@@ -566,6 +567,7 @@ const Headlines = {
 			row = `<div class="hl ${row_class} ${Article.getScoreClass(hl.score)}"
 				id="RROW-${hl.id}"
 				data-orig-feed-id="${hl.feed_id}"
+				data-orig-feed-title="${App.escapeHtml(hl.feed_title)}"
 				data-article-id="${hl.id}"
 				data-score="${hl.score}"
 				data-article-title="${App.escapeHtml(hl.title)}"