Updated dist files.

_version.d.ts

@@ -1 +1 @@
-export declare const version = "4.0.9";
+export declare const version = "4.0.10";

_version.js

@@ -1,3 +1,3 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.version = "4.0.9";
+exports.version = "4.0.10";

dist/ethers.js

@@ -1,7 +1,7 @@
 (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.ethers = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.version = "4.0.9";
+exports.version = "4.0.10";
 
 },{}],2:[function(require,module,exports){
 "use strict";
@@ -861,6 +861,17 @@ function setCensorship(censorship, permanent) {
     _permanentCensorErrors = !!permanent;
 }
 exports.setCensorship = setCensorship;
+function checkNormalize() {
+    try {
+        if (String.fromCharCode(0xe9).normalize('NFD') !== String.fromCharCode(0x65, 0x0301)) {
+            throw new Error('broken');
+        }
+    }
+    catch (error) {
+        throwError('platform missing String.prototype.normalize', exports.UNSUPPORTED_OPERATION, { operation: 'String.prototype.normalize' });
+    }
+}
+exports.checkNormalize = checkNormalize;
 
 },{"./_version":1}],6:[function(require,module,exports){
 'use strict';
@@ -13779,6 +13790,7 @@ function mnemonicToEntropy(mnemonic, wordlist) {
     if (!wordlist) {
         wordlist = lang_en_1.langEn;
     }
+    errors.checkNormalize();
     var words = wordlist.split(mnemonic);
     if ((words.length % 3) !== 0) {
         throw new Error('invalid mnemonic');
@@ -15926,6 +15938,7 @@ exports.parseEther = parseEther;
 'use strict';
 Object.defineProperty(exports, "__esModule", { value: true });
 var constants_1 = require("../constants");
+var errors_1 = require("../errors");
 var bytes_1 = require("./bytes");
 ///////////////////////////////
 var UnicodeNormalizationForm;
@@ -15941,6 +15954,7 @@ var UnicodeNormalizationForm;
 function toUtf8Bytes(str, form) {
     if (form === void 0) { form = UnicodeNormalizationForm.current; }
     if (form != UnicodeNormalizationForm.current) {
+        errors_1.checkNormalize();
         str = str.normalize(form);
     }
     var result = [];
@@ -16109,7 +16123,7 @@ function parseBytes32String(bytes) {
 }
 exports.parseBytes32String = parseBytes32String;
 
-},{"../constants":3,"./bytes":62}],84:[function(require,module,exports){
+},{"../constants":3,"../errors":5,"./bytes":62}],84:[function(require,module,exports){
 'use strict';
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;

dist/ethers.types.txt

@@ -188,6 +188,7 @@ declare module 'ethers/errors' {
     export function checkNew(self: any, kind: any): void;
     export function checkArgumentCount(count: number, expectedCount: number, suffix?: string): void;
     export function setCensorship(censorship: boolean, permanent?: boolean): void;
+    export function checkNormalize(): void;
 }
 
 declare module 'ethers/providers' {
@@ -261,7 +262,7 @@ declare module 'ethers/utils/shims' {
 }
 
 declare module 'ethers/_version' {
-    export const version = "4.0.9";
+    export const version = "4.0.10";
 }
 
 declare module 'ethers/utils/bignumber' {

errors.d.ts

@@ -14,3 +14,4 @@ export declare function throwError(message: string, code: string, params: any):
 export declare function checkNew(self: any, kind: any): void;
 export declare function checkArgumentCount(count: number, expectedCount: number, suffix?: string): void;
 export declare function setCensorship(censorship: boolean, permanent?: boolean): void;
+export declare function checkNormalize(): void;

errors.js

@@ -108,3 +108,14 @@ function setCensorship(censorship, permanent) {
     _permanentCensorErrors = !!permanent;
 }
 exports.setCensorship = setCensorship;
+function checkNormalize() {
+    try {
+        if (String.fromCharCode(0xe9).normalize('NFD') !== String.fromCharCode(0x65, 0x0301)) {
+            throw new Error('broken');
+        }
+    }
+    catch (error) {
+        throwError('platform missing String.prototype.normalize', exports.UNSUPPORTED_OPERATION, { operation: 'String.prototype.normalize' });
+    }
+}
+exports.checkNormalize = checkNormalize;

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "ethers",
-  "version": "4.0.9",
+  "version": "4.0.10",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ethers",
-  "version": "4.0.9",
+  "version": "4.0.10",
   "description": "Ethereum wallet library.",
   "main": "./index.js",
   "types": "./index.d.ts",

src.ts/_version.ts

@@ -1 +1 @@
-export const version = "4.0.9";
+export const version = "4.0.10";

utils/hdnode.js

@@ -166,6 +166,7 @@ function mnemonicToEntropy(mnemonic, wordlist) {
     if (!wordlist) {
         wordlist = lang_en_1.langEn;
     }
+    errors.checkNormalize();
     var words = wordlist.split(mnemonic);
     if ((words.length % 3) !== 0) {
         throw new Error('invalid mnemonic');

utils/utf8.js

@@ -1,6 +1,7 @@
 'use strict';
 Object.defineProperty(exports, "__esModule", { value: true });
 var constants_1 = require("../constants");
+var errors_1 = require("../errors");
 var bytes_1 = require("./bytes");
 ///////////////////////////////
 var UnicodeNormalizationForm;
@@ -16,6 +17,7 @@ var UnicodeNormalizationForm;
 function toUtf8Bytes(str, form) {
     if (form === void 0) { form = UnicodeNormalizationForm.current; }
     if (form != UnicodeNormalizationForm.current) {
+        errors_1.checkNormalize();
         str = str.normalize(form);
     }
     var result = [];

wordlists/lang-ja.js

@@ -131,9 +131,7 @@ var LangJa = /** @class */ (function (_super) {
         return wordlist.indexOf(word);
     };
     LangJa.prototype.split = function (mnemonic) {
-        if (!mnemonic.normalize) {
-            errors.throwError('Japanese is unsupported on this platform; missing String.prototype.normalize', errors.UNSUPPORTED_OPERATION, { operation: 'String.prototype.normalize' });
-        }
+        errors.checkNormalize();
         return mnemonic.split(/(?:\u3000| )+/g);
     };
     LangJa.prototype.join = function (words) {