Rewrite const and let to var when serving js files from the dev server

diff --git a/trivabble-server.js b/trivabble-server.js
index c92dd87217c05a5e104101d9f9fcfabad5e97d20..814447f8e6e5473249fe8e95e7df48f3a1ef2fb5 100644 (file)
--- a/trivabble-server.js
+++ b/trivabble-server.js
@@ -755,6 +755,12 @@ function handleRequest(request, response) {
                         for (const i in mimes) {
                             if (Object.prototype.hasOwnProperty.call(mimes, i) && request.url.endsWith(i)) {
                                 mime = mimes[i];
+                                if (i === ".js") {
+                                    contents = contents.toString().replace(
+                                        /(?<before>^|\s|\()(?:const|let)(?<after>\s)/gu,
+                                        "$1var$2"
+                                    );
+                                }
                                 break;
                             }
                         }