Make monkey-patching safer in web exports

Also adds missing copyright statements.

Author: YuriSizov

dist/web_assets/boscaweb.main.js

@@ -1,3 +1,9 @@
+/***************************************************/
+/* Part of Bosca Ceoil Blue                        */
+/* Copyright (c) 2024 Yuri Sizov and contributors  */
+/* Provided under MIT                              */
+/***************************************************/
+
 const BOSCAWEB_STATE_INITIAL  = 0;
 const BOSCAWEB_STATE_PROGRESS = 1;
 const BOSCAWEB_STATE_READY    = 2;

dist/web_assets/boscaweb.patches.js

@@ -1,45 +1,53 @@
+/***************************************************/
+/* Part of Bosca Ceoil Blue                        */
+/* Copyright (c) 2024 Yuri Sizov and contributors  */
+/* Provided under MIT                              */
+/***************************************************/
+
 // Monkey-patch fetch to intercept Godot loading its bits and pieces.
-const _orig_fetch = window.fetch;
-window.fetch = async function(resource, options) {
-	if (!(resource in BOSCA_FILE_SIZES)) {
-		return await _orig_fetch(resource, options);
-	}
-	
-	const response = await _orig_fetch(resource, options);
-	const innerStream = new ReadableStream(
-		{
-			async start(controller) {
-				const totalBytes = BOSCA_FILE_SIZES[resource];
-				let loadedBytes = 0;
-				
-				const reader = response.body.getReader();
-				
-				while (true) {
-					const { value, done } = await reader.read();
-					if (done) {
-						bosca.setLoadingProgress(resource, (totalBytes - loadedBytes));
-						break;
+(function(window){
+	const _orig_fetch = window.fetch;
+	window.fetch = async function(resource, options) {
+		if (!(resource in BOSCA_FILE_SIZES)) {
+			return await _orig_fetch(resource, options);
+		}
+		
+		const response = await _orig_fetch(resource, options);
+		const innerStream = new ReadableStream(
+			{
+				async start(controller) {
+					const totalBytes = BOSCA_FILE_SIZES[resource];
+					let loadedBytes = 0;
+					
+					const reader = response.body.getReader();
+					
+					while (true) {
+						const { value, done } = await reader.read();
+						if (done) {
+							bosca.setLoadingProgress(resource, (totalBytes - loadedBytes));
+							break;
+						}
+						
+						loadedBytes += value.byteLength
+						bosca.setLoadingProgress(resource, loadedBytes);
+						controller.enqueue(value);
 					}
 
-					loadedBytes += value.byteLength
-					bosca.setLoadingProgress(resource, loadedBytes);
-					controller.enqueue(value);
+					reader.releaseLock();
+					controller.close();
 				}
-				
-				reader.releaseLock();
-				controller.close();
+			},
+			{
+				status: response.status,
+				statusText: response.statusText
 			}
-		},
-		{
-			status: response.status,
-			statusText: response.statusText
+		)
+		
+		const forwardedResponse = new Response(innerStream);
+		for (const pair of response.headers.entries()) {
+			forwardedResponse.headers.set(pair[0], pair[1]);
 		}
-	)
-	
-	const forwardedResponse = new Response(innerStream);
-	for (const pair of response.headers.entries()) {
-		forwardedResponse.headers.set(pair[0], pair[1]);
+		
+		return forwardedResponse;
 	}
-	
-	return forwardedResponse;
-}
+})(window);