handle source map warnings for packages not using webpack 5

craco.config.js

@@ -11,7 +11,19 @@ module.exports = {
           "http": require.resolve("stream-http"),
           "https": require.resolve("https-browserify")
         },
-      }
+      };
+      
+      webpackConfig.ignoreWarnings = [
+        function ignoreSourcemapsloaderWarnings(warning) {
+          return (
+            warning.module &&
+            warning.module.resource.includes("node_modules") &&
+            warning.details &&
+            warning.details.includes("source-map-loader")
+          );
+        },
+      ];
+
       return webpackConfig;
     },
   },