From 0ced8a99c2215693d616af6510ae9f6e04b6330f Mon Sep 17 00:00:00 2001
From: Patrick McCann <pmccann@cafemedia.com>
Date: Tue, 27 May 2025 10:15:39 -0400
Subject: [PATCH 1/2] feat(download): show gzipped size

---
 assets/js/download.js | 9 +++++++++
 download.md           | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/assets/js/download.js b/assets/js/download.js
index e5cc8f7538..bcca0db381 100644
--- a/assets/js/download.js
+++ b/assets/js/download.js
@@ -97,6 +97,15 @@
             document.body.appendChild(link);
             link.click();
             document.body.removeChild(link);
+            if (window.pako) {
+                try {
+                    var gz = pako.gzip(data);
+                    var kb = (gz.length / 1024).toFixed(1);
+                    document.getElementById('package-size').innerText = 'Estimated gzipped size: ' + kb + ' kB';
+                } catch(e) {
+                    console.log('pako gzip failed', e);
+                }
+            }
             if (form_data["removedModules"].length > 0) {
                 alert(
                     "The following modules were removed from your download because they aren't present in Prebid.js version " +
diff --git a/download.md b/download.md
index 9c6f6fcacd..8114fd3401 100644
--- a/download.md
+++ b/download.md
@@ -33,6 +33,7 @@ a.tip:hover span {
 </style>
 
 <script src="https://cdn.firebase.com/js/client/2.4.2/firebase.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.0.4/pako.min.js"></script>
 <script src="/assets/js/download.js"></script>
 
 <style>
@@ -116,6 +117,8 @@ These modules may require accounts with a service provider.<br/>
 
 <button id="download-button" type="button" class="btn btn-lg btn-primary">Get Prebid.js! </button>
 
+<div id="package-size" style="margin-top:10px"></div>
+
 </div>
 
 </form>

From 68beb1323b76e66eb63830e1fbadb9c049a52f45 Mon Sep 17 00:00:00 2001
From: Patrick McCann <pmccann@cafemedia.com>
Date: Tue, 3 Jun 2025 19:00:09 -0400
Subject: [PATCH 2/2] Add config download support and gz size display

---
 assets/js/download.js | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/assets/js/download.js b/assets/js/download.js
index bcca0db381..ca83175b22 100644
--- a/assets/js/download.js
+++ b/assets/js/download.js
@@ -64,6 +64,15 @@
         }
     }
 
+    function triggerDownload(blob, filename) {
+        var link = document.createElement("a");
+        link.href = window.URL.createObjectURL(blob);
+        link.download = filename;
+        document.body.appendChild(link);
+        link.click();
+        document.body.removeChild(link);
+    }
+
     function submit_download() {
         $('#download-button').html('<i class="glyphicon glyphicon-send"></i> Sending Request...').addClass('disabled');
 
@@ -90,13 +99,11 @@
                     filename = matches[1].replace(/['"]/g, "");
             }
             // The actual download
-            var blob = new Blob([data], { type: "text/javascript" });
-            var link = document.createElement("a");
-            link.href = window.URL.createObjectURL(blob);
-            link.download = filename;
-            document.body.appendChild(link);
-            link.click();
-            document.body.removeChild(link);
+            var jsBlob = new Blob([data], { type: "text/javascript" });
+            var configData = JSON.stringify({ version: form_data.version, modules: form_data.modules }, null, 2);
+
+            triggerDownload(jsBlob, filename);
+            triggerDownload(new Blob([configData], { type: "application/json" }), "prebid-config.json");
             if (window.pako) {
                 try {
                     var gz = pako.gzip(data);