fix: removeEmpty shouldn't remove elements with images or iframes inside

src/utils/dom/remove-empty.js

@@ -1,7 +1,7 @@
 export default function removeEmpty($article, $) {
   $article.find('p').each((index, p) => {
     const $p = $(p);
-    if ($p.text().trim() === '') $p.remove();
+    if ($p.find('iframe, img').length === 0 && $p.text().trim() === '') $p.remove();
   });
 
   return $;

src/utils/dom/remove-empty.test.js

@@ -27,5 +27,13 @@ describe('removeEmpty($)', () => {
     const result = removeEmpty($('*').first(), $);
     assertClean(result.html(), HTML.removeEmptyP.after);
   });
+
+  it('does not remove empty p tags containing an iframe', () => {
+    const html = '<div><p><span><iframe src="foo"></iframe></span></p></div>';
+    const $ = cheerio.load(html);
+
+    const result = removeEmpty($('*').first(), $);
+    assertClean(result.html(), html);
+  });
 });