fix

lib/hooks/useReceiveNano.ts

@@ -1,4 +1,5 @@
 import Big from 'bignumber.js'
+import { validateWork } from 'nanocurrency'
 import { useCallback, useState } from 'react'
 
 import computeWorkAsync from '../computeWorkAsync'
@@ -16,7 +17,13 @@ const useReceiveNano = () => {
     async (hash: string, amount: string) => {
       if (account === undefined) return
       let precomputedWork = await getPrecomputedWork(account.address)
-      if (precomputedWork === null) {
+      const isWorkValid =
+        precomputedWork !== null &&
+        validateWork({
+          work: precomputedWork,
+          blockHash: account.frontier ?? account.publicKey,
+        })
+      if (!isWorkValid) {
         setGeneratingWork(true)
         precomputedWork = await computeWorkAsync(
           account.frontier ?? account.publicKey,

lib/hooks/useSendNano.ts

@@ -1,4 +1,5 @@
 import Big from 'bignumber.js'
+import { validateWork } from 'nanocurrency'
 import { useCallback, useState } from 'react'
 
 import computeWorkAsync from '../computeWorkAsync'
@@ -21,7 +22,13 @@ const useSendNano = () => {
       )
         throw new Error('wrong_block_data') // todo improve this error
       let precomputedWork = await getPrecomputedWork(account.address)
-      if (precomputedWork === null) {
+      const isWorkValid =
+        precomputedWork !== null &&
+        validateWork({
+          work: precomputedWork,
+          blockHash: account.frontier,
+        })
+      if (!isWorkValid) {
         setGeneratingWork(true)
         precomputedWork = await computeWorkAsync(
           account.frontier ?? account.publicKey,

lib/hooks/useSetupServiceWorker.ts

@@ -4,7 +4,7 @@ import useSetup from './useSetup'
 
 const useSetupServiceWorker = (skip?: boolean) =>
   useSetup(
-    useCallback(() => {
+    useCallback(async () => {
       if ('serviceWorker' in navigator) {
         try {
           navigator.serviceWorker.register('/sw.js')

tsconfig.json

@@ -9,7 +9,7 @@
     "noEmit": true,
     "incremental": true,
     "esModuleInterop": true,
-    "module": "esnext",
+    "module": "ESNext",
     "moduleResolution": "node",
     "resolveJsonModule": true,
     "isolatedModules": true,