test-tools/issuer-front-end does not display credential entry

[annenkov]

Bug Description

Step 4 fails with Error: Do not know how to serialize a BigInt.

Tested with two contracts (one with default values from the front end and the other with a custom schema with an integer attribute)

• The contract 7935 uses the default values for the schema and metadata.
• The contract 7927 uses the following credential schema: https://gist.githubusercontent.com/annenkov/cc9aae166bac77def198cdc3600c7164/raw

Steps to Reproduce

Contract with the default values:

• Use contract address 7935 in Step 3.
• Continue to Step 5 with Credential Public Key = 5e0c13096a1ea6b772535d76ae0fe9454fcfced6a17c9ce5384ce96697229ea8
• Click "View Credential Entry in Registry Contract"

Contract with the custom schema/metadata:

• Use contract address 7927 in Step 3.
• Continue to Step 5 with Credential Public Key = 764a1de97fe402180d9678277da4297392ceb522fc02017497aa25e52e6b840b
• Click "View Credential Entry in Registry Contract"

Expected Result

The public credential data is displayed.

Actual Result

The message Error: Do not know how to serialize a BigInt is displayed below the "View Credential Entry in Registry Contract" button.

Versions

• Software Version: Web3ID Testing Front End 1.0.13, Concordium Web Wallet 1.4.0
• OS: Ubuntu 22.04.3 LTS
• Browser: Google Chrome 120.0.6099.109 (Official Build) (64-bit)