Added `base_url` parameter.

server.js

@@ -97,7 +97,8 @@ app.get('/view/:baseView', async (req, res) => {
   data.helpers = {
     include_partial: (path) => projectDir + path,
     include_block_template: (path) => `src/${blockName}.template`,
-    section_class: `${blockName}--${jsonFileName}`
+    section_class: `${blockName}--${jsonFileName}`,
+    base_url: '/'
   }
 
   const baseView = req.params.baseView ?? 'container';