Link to cached favicons

webapp_column_right.py

@@ -240,6 +240,10 @@ def _htmlNewswire(baseDir: str, newswire: {}, nickname: str, moderator: bool,
         faviconUrl = getNewswireFaviconUrl(url)
         faviconLink = ''
         if faviconUrl:
+            favBase = '/favicons/' + faviconUrl.replace('/', '#')
+            cachedFaviconFilename = baseDir + favBase
+            if os.path.isfile(cachedFaviconFilename):
+                faviconUrl = favBase
             faviconLink = \
                 '<img loading="lazy" src="' + faviconUrl + '" ' + \
                 'alt="" ' + _getBrokenFavSubstitute() + '/>'