diff --git a/base/sources/backends/data/wasm/start.js b/base/sources/backends/data/wasm/start.js
index 7f0f9bb0..d5df49c7 100644
--- a/base/sources/backends/data/wasm/start.js
+++ b/base/sources/backends/data/wasm/start.js
@@ -630,6 +630,9 @@ async function init() {
 					req.open("GET", read_string(filename), false);
 					req.overrideMimeType("text/plain; charset=x-user-defined");
 					req.send();
+					if (req.status === 0 || req.status >= 400) {
+						return 0;
+					}
 					str = req.response;
 				}
 				file_buffer_pos = 0;
diff --git a/base/sources/backends/wasm_system.c b/base/sources/backends/wasm_system.c
index 19ed3938..0a602c3b 100644
--- a/base/sources/backends/wasm_system.c
+++ b/base/sources/backends/wasm_system.c
@@ -232,6 +232,10 @@ const char *iron_system_id() {
 	return "Wasm";
 }
 
+const char *iron_internal_save_path() {
+	return ".";
+}
+
 // char       *iron_internal_cut_callback(void);
 // char       *iron_internal_copy_callback(void);
 // void        iron_internal_paste_callback(char *);
diff --git a/base/tools/make.js b/base/tools/make.js
index 5f2612dc..e27d2775 100644
--- a/base/tools/make.js
+++ b/base/tools/make.js
@@ -2648,7 +2648,7 @@ class IronExporter {
 	copy_blob(from, to, embed) {
 		fs_ensuredir(path_join("build", "out", path_dirname(to)));
 		let to_full = path_join("build", "out", to);
-		if (embed && !to.endsWith(".txt") && !to.endsWith(".md") && !to.endsWith(".json") && !to.endsWith(".js")) {
+		if (embed && !to.endsWith(".txt") && !to.endsWith(".md") && !to.endsWith(".json") && !to.endsWith(".js") && !to.endsWith(".html")) {
 			fs_ensuredir(path_join("build", "temp", path_dirname(to)));
 			to_full = path_join("build", "temp", to);
 		}
@@ -2694,7 +2694,7 @@ function export_iron_project(project, options) {
 	if (globalThis.flags.embed) {
 		let embed_files = [];
 		for (let asset of assets) {
-			if (asset.noembed || asset.from.endsWith(".txt") || asset.from.endsWith(".md") || asset.from.endsWith(".json") || asset.from.endsWith(".js")) {
+			if (asset.noembed || asset.from.endsWith(".txt") || asset.from.endsWith(".md") || asset.from.endsWith(".json") || asset.from.endsWith(".js") || asset.from.endsWith(".html")) {
 				continue;
 			}
 			embed_files.push(path_resolve("build", "temp", asset.files[0]));