catch loaded

apps/remix-ide/src/app/tabs/script-runner-ui.tsx

@@ -40,9 +40,9 @@ export class ScriptRunnerUIPlugin extends ViewPlugin {
       url: 'http://localhost:3000?template=' + name
     }
     console.log('loadScriptRunner', newProfile)
+    try {
       const plugin: IframePlugin = new IframePlugin(newProfile)
       await this.engine.register(plugin)
-    
       await this.call('manager', 'activatePlugin', newProfile.name)
       this.current = newProfile.name
       this.currentTemplate = name
@@ -50,6 +50,11 @@ export class ScriptRunnerUIPlugin extends ViewPlugin {
       this.on(newProfile.name, 'info', this.log.bind(this))
       this.on(newProfile.name, 'warn', this.log.bind(this))
       this.on(newProfile.name, 'error', this.log.bind(this))
+    } catch (e) {
+      this.current = newProfile.name
+      this.currentTemplate = name
+      console.log('Already loaded')
+    }
   }
 
   async execute(script: string, filePath: string) {