[fix] webdiff should trigger failure

src/lib/watchers/webdiff/webdiff-watcher.ts

@@ -35,10 +35,7 @@ export function webDiffWatcher(conf: Conf) {
           htmlDiff += `<span style="color: ${color};">${htmlStripped}</span>`
         });
 
-        if (htmlDiff) {
-          fs.writeFileSync(path.join(__dirname, 'diff.html'), htmlDiff, 'utf8')
-        }
-        console.log('Diff done')
+        throw 'Diff detected'
       }
     }