Fix: Use browser compatable Buffer (#3057)

* Fix: Use browser compatable Buffer

* Update src/patcher/from-docx.ts

Co-authored-by: Copilot <[email protected]>

---------

Co-authored-by: Copilot <[email protected]>

Author: dolanmiu

package-lock.json

@@ -1,6 +1,6 @@
 {
     "name": "docx",
-    "version": "9.4.0",
+    "version": "9.4.1",
     "description": "Easily generate .docx files with JS/TS with a nice declarative API. Works for Node and on the Browser.",
     "type": "module",
     "main": "dist/index.umd.cjs",

package.json

@@ -63,8 +63,20 @@ export type PatchDocumentOptions<T extends PatchDocumentOutputType = PatchDocume
 };
 
 const imageReplacer = new ImageReplacer();
-const UTF16LE = Buffer.from([0xff, 0xfe]);
-const UTF16BE = Buffer.from([0xfe, 0xff]);
+const UTF16LE = new Uint8Array([0xff, 0xfe]);
+const UTF16BE = new Uint8Array([0xfe, 0xff]);
+
+const compareByteArrays = (a: Uint8Array, b: Uint8Array): boolean => {
+    if (a.length !== b.length) {
+        return false;
+    }
+    for (let i = 0; i < a.length; i++) {
+        if (a[i] !== b[i]) {
+            return false;
+        }
+    }
+    return true;
+};
 
 export const patchDocument = async <T extends PatchDocumentOutputType = PatchDocumentOutputType>({
     outputType,
@@ -96,7 +108,7 @@ export const patchDocument = async <T extends PatchDocumentOutputType = PatchDoc
     for (const [key, value] of Object.entries(zipContent.files)) {
         const binaryValue = await value.async("uint8array");
         const startBytes = binaryValue.slice(0, 2);
-        if (UTF16LE.equals(startBytes) || UTF16BE.equals(startBytes)) {
+        if (compareByteArrays(startBytes, UTF16LE) || compareByteArrays(startBytes, UTF16BE)) {
             binaryContentMap.set(key, binaryValue);
             continue;
         }