2 files changed, 27 insertions, 0 deletions

diff --git a/platform/web/js/libs/library_godot_fetch.js b/platform/web/js/libs/library_godot_fetch.js
index b50012c1e2..1bb48bfd6a 100644
--- a/platform/web/js/libs/library_godot_fetch.js
+++ b/platform/web/js/libs/library_godot_fetch.js
@@ -50,17 +50,22 @@ const GodotFetch = {
 				return;
 			}
 			let chunked = false;
+			let bodySize = -1;
 			response.headers.forEach(function (value, header) {
 				const v = value.toLowerCase().trim();
 				const h = header.toLowerCase().trim();
 				if (h === 'transfer-encoding' && v === 'chunked') {
 					chunked = true;
 				}
+				if (h === 'content-length') {
+					bodySize = parseInt(v, 10);
+				}
 			});
 			obj.status = response.status;
 			obj.response = response;
 			obj.reader = response.body.getReader();
 			obj.chunked = chunked;
+			obj.bodySize = bodySize;
 		},
 
 		onerror: function (id, err) {
diff --git a/platform/web/js/libs/library_godot_os.js b/platform/web/js/libs/library_godot_os.js
index c4c45a3036..00ae399583 100644
--- a/platform/web/js/libs/library_godot_os.js
+++ b/platform/web/js/libs/library_godot_os.js
@@ -291,6 +291,28 @@ const GodotOS = {
 		});
 	},
 
+	godot_js_os_has_feature__sig: 'ii',
+	godot_js_os_has_feature: function (p_ftr) {
+		const ftr = GodotRuntime.parseString(p_ftr);
+		const ua = navigator.userAgent;
+		if (ftr === 'web_macos') {
+			return (ua.indexOf('Mac') !== -1) ? 1 : 0;
+		}
+		if (ftr === 'web_windows') {
+			return (ua.indexOf('Windows') !== -1) ? 1 : 0;
+		}
+		if (ftr === 'web_android') {
+			return (ua.indexOf('Android') !== -1) ? 1 : 0;
+		}
+		if (ftr === 'web_ios') {
+			return ((ua.indexOf('iPhone') !== -1) || (ua.indexOf('iPad') !== -1) || (ua.indexOf('iPod') !== -1)) ? 1 : 0;
+		}
+		if (ftr === 'web_linuxbsd') {
+			return ((ua.indexOf('CrOS') !== -1) || (ua.indexOf('BSD') !== -1) || (ua.indexOf('Linux') !== -1) || (ua.indexOf('X11') !== -1)) ? 1 : 0;
+		}
+		return 0;
+	},
+
 	godot_js_os_execute__sig: 'ii',
 	godot_js_os_execute: function (p_json) {
 		const json_args = GodotRuntime.parseString(p_json);