Fixed input parsing for computing a witness

apps/circuit-compiler/src/app/components/witness.tsx

@@ -12,9 +12,18 @@ export function WitnessSection ({ plugin, signalInputs, status }: {plugin: Circo
     let value = e.target.value
 
     try {
-      value = JSON.parse(value)
-
-      if (!Array.isArray(value)) throw new Error('Invalid JSON')
+      value = JSON.parse(JSON.stringify(value, (key, value) => {
+        if (typeof value === 'bigint') {
+          return value.toString()
+        } else {
+          try {
+            const parsedValue = JSON.parse(value)
+          
+            return Array.isArray(parsedValue) ? parsedValue : value
+          } catch (e) {
+            return value
+          }
+        }}))
     } catch (e) {
       // do nothing
     }