patch eth-permit

package.json

@@ -4,7 +4,8 @@
   "description": "Package for implementing the ERC20 permit (EIP-2612)",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "postinstall": "patch-package",
+    "test": "npx buidler --network localhost test"
   },
   "repository": {
     "type": "git",
@@ -22,9 +23,6 @@
   "bugs": {
     "url": "https://github.com/soliditylabs/ERC20-permit/issues"
   },
-  "publishConfig": {
-    "registry": "https://npm.pkg.github.com/"
-  },
   "homepage": "https://github.com/soliditylabs/ERC20-permit#readme",
   "devDependencies": {
     "@nomiclabs/buidler": "^1.4.7",
@@ -39,7 +37,12 @@
     "ethereumjs-common": "^1.5.2",
     "ethereumjs-tx": "^2.1.2",
     "ganache-cli": "^6.11.0",
+    "patch-package": "^6.2.2",
     "solc": "^0.7.2",
     "web3": "^1.3.0"
-  }
+  },
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {}
 }

patches/eth-permit+0.1.7.patch

@@ -0,0 +1,21 @@
+diff --git a/node_modules/eth-permit/dist/rpc.js b/node_modules/eth-permit/dist/rpc.js
+index 050c552..d993dec 100644
+--- a/node_modules/eth-permit/dist/rpc.js
++++ b/node_modules/eth-permit/dist/rpc.js
+@@ -14,6 +14,7 @@ const randomId = () => Math.floor(Math.random() * 10000000000);
+ exports.send = (provider, method, params) => new Promise((resolve, reject) => {
+     const payload = {
+         id: randomId(),
++        jsonrpc: '2.0', 
+         method,
+         params,
+     };
+@@ -38,7 +39,7 @@ exports.send = (provider, method, params) => new Promise((resolve, reject) => {
+ });
+ exports.signData = (provider, fromAddress, typeData) => __awaiter(void 0, void 0, void 0, function* () {
+     const _typeData = typeof typeData === 'string' ? typeData : JSON.stringify(typeData);
+-    const result = yield exports.send(provider, 'eth_signTypedData_v4', [fromAddress, _typeData]);
++    const result = yield exports.send(provider, 'eth_signTypedData', [fromAddress, JSON.parse(_typeData)]);
+     return {
+         r: result.slice(0, 66),
+         s: '0x' + result.slice(66, 130),