diff --git a/webpack.config.js b/webpack.config.js
index 9d398da91a..2ed374ba49 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -25,6 +25,8 @@ const isProduction = process.env.NODE_ENV !== 'development';
 const filterCssImport = (parsedImport, cssFile) => {
   const url = parsedImport && parsedImport.url ? parsedImport.url : parsedImport;
   const importedFile = url.replace(/[?#].+/, '').toLowerCase();
+  if (/vendor\/assets/.test(url)) return false; // font imports
+  if (/web_src[/\\]less/.test(cssFile)) return true; // relative imports
   if (cssFile.includes('monaco')) return true;
   if (cssFile.includes('fomantic')) {
     if (/brand-icons/.test(importedFile)) return false;