Ethereum 使用VS代码创建与智能合约交互的UI
我一直在关注这个教程。 testrpc正在运行，我不知道现在还能做什么。下面是错误Ethereum 使用VS代码创建与智能合约交互的UI,ethereum,Ethereum,我一直在关注这个教程。 testrpc正在运行，我不知道现在还能做什么。下面是错误 web3.min.js:1 Failed to load http://localhost:8545/: Response to preflight request doesn't pass access control check: The value of the 'Access-Control- Allow-Origin' header in the response must not be the w
web3.min.js:1 Failed to load http://localhost:8545/: Response to preflight
request doesn't pass access control check: The value of the 'Access-Control-
Allow-Origin' header in the response must not be the wildcard '*' when the
request's credentials mode is 'include'. Origin 'null' is therefore not
allowed access. The credentials mode of requests initiated by the
XMLHttpRequest is controlled by the withCredentials attribute.
t.send @ web3.min.js:1
web3.min.js:1 Uncaught Error: CONNECTION ERROR: Couldn't connect to node
http://localhost:8545.
at Object.InvalidConnection (web3.min.js:1)
at t.send (web3.min.js:1)
at n.send (web3.min.js:1)
at l.accounts (web3.min.js:1)
at index.html:40
我能够通过将
web30.20.6