fetch from testnets

libs/remix-core-plugin/src/lib/helpers/fetch-etherscan.ts

@@ -10,7 +10,7 @@ export const fetchContractFromEtherscan = async (plugin, network, contractAddres
     // etherscan api doc https://docs.etherscan.io/api-endpoints/contracts
     if (data.message === 'OK' && data.status === "1") {
       if (data.result.length) {
-        if (data.result[0].SourceCode === '') throw new Error('contract not verified in Etherscan')
+        if (data.result[0].SourceCode === '') throw new Error(`contract not verified on Etherscan ${network.name} network`)
         if (data.result[0].SourceCode.startsWith('{')) {
           data.result[0].SourceCode = JSON.parse(data.result[0].SourceCode.replace(/(?:\r\n|\r|\n)/g, '').replace(/^{{/,'{').replace(/}}$/,'}'))
         }

libs/remix-ui/workspace/src/lib/actions/index.ts

@@ -63,7 +63,15 @@ export const initWorkspace = (filePanelPlugin) => async (reducerDispatch: React.
       const route = window.location.pathname
       if (route.startsWith('/address/0x') && route.length === 51) {
         const contractAddress = route.split('/')[2]
-        const network = {id: 1, name: 'main'}
+        const networks = [
+          {id: 1, name: 'mainnet'},
+          {id: 3, name: 'ropsten'},
+          {id: 4, name: 'rinkeby'},
+          {id: 42, name: 'kovan'},
+          {id: 5, name: 'goerli'}
+        ]
+        plugin.call('notification', 'toast', `Looking for contract address ${contractAddress} on different networks`)
+        for (const network of networks) {
           const target = `/${network.name}`
           try {
             const data = await fetchContractFromEtherscan(plugin, network, contractAddress, target)
@@ -74,11 +82,11 @@ export const initWorkspace = (filePanelPlugin) => async (reducerDispatch: React.
             await workspaceProvider.set(filePath, data.compilationTargets[filePath]['content'])
             plugin.on('editor', 'editorMounted', async () => await plugin.fileManager.openFile(filePath))
           } catch (error) {
-          if(error.message.includes('unable to retrieve contract data') || error.message.includes('unable to try fetching the source code'))
             plugin.call('notification', 'toast', error.message)
             await basicWorkspaceInit(workspaces, workspaceProvider)
           }
         }
+      }
     } else {
       await basicWorkspaceInit(workspaces, workspaceProvider)
     }