console.group() emits duplicate CDP messages

• Version: v12.11.1
• Platform: Darwin 10.14

What steps will reproduce the bug?

With a debugger attached, invoke:

console.group('group name', { foo: true });

How often does it reproduce? Is there a required condition?

Every time

What is the expected behavior?

There should be a single CDP message for the console group. Running that line of code in the Chrome devtools, that is the case and I get a single message:

What do you see instead?

Running that line of code in Node.js, I get two messages--the correct startGroup type, and then an additional log message whose stack says it comes from the group method in internal/console/constructor.js

{"method":"Runtime.consoleAPICalled","params":{"type":"startGroup","args":[{"type":"string","value":"group name"},{"type":"object","className":"Object","description":"Object","objectId":"{\"injectedScriptId\":1,\"id\":1}","preview":{"type":"object","description":"Object","overflow":false,"properties":[{"name":"foo","type":"boolean","value":"true"}]}}],"executionContextId":1,"timestamp":1582746620974.181,"stackTrace":{"callFrames":[{"functionName":"","scriptId":"97","url":"file:///Users/copeet/Github/vscode-pwa/demos/node/main.js","lineNumber":1,"columnNumber":8},{"functionName":"Module._compile","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":944,"columnNumber":29},{"functionName":"Module._extensions..js","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":961,"columnNumber":9},{"functionName":"Module.load","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":797,"columnNumber":31},{"functionName":"Module._load","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":710,"columnNumber":11},{"functionName":"Module.runMain","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":1013,"columnNumber":9},{"functionName":"","scriptId":"39","url":"internal/main/run_main_module.js","lineNumber":16,"columnNumber":10}]}}}
{"method":"Runtime.consoleAPICalled","params":{"type":"log","args":[{"type":"string","value":"group name"},{"type":"object","className":"Object","description":"Object","objectId":"{\"injectedScriptId\":1,\"id\":2}","preview":{"type":"object","description":"Object","overflow":false,"properties":[{"name":"foo","type":"boolean","value":"true"}]}}],"executionContextId":1,"timestamp":1582746620974.757,"stackTrace":{"callFrames":[{"functionName":"group","scriptId":"25","url":"internal/console/constructor.js","lineNumber":385,"columnNumber":11},{"functionName":"","scriptId":"97","url":"file:///Users/copeet/Github/vscode-pwa/demos/node/main.js","lineNumber":1,"columnNumber":8},{"functionName":"Module._compile","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":944,"columnNumber":29},{"functionName":"Module._extensions..js","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":961,"columnNumber":9},{"functionName":"Module.load","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":797,"columnNumber":31},{"functionName":"Module._load","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":710,"columnNumber":11},{"functionName":"Module.runMain","scriptId":"43","url":"internal/modules/cjs/loader.js","lineNumber":1013,"columnNumber":9},{"functionName":"","scriptId":"39","url":"internal/main/run_main_module.js","lineNumber":16,"columnNumber":10}]}}}

Additional information

For now I can look for this behavior inside our debugger and ignore logs that come from the 'group' function in that file, though this is rather delicate. It'd be nice to have it resolved 🙂

Ref: https://github.com/microsoft/vscode/issues/91095

Reproduziere das Problem mit console.group('group name', { foo: true }), während ein Debugger angehängt ist, und untersuche anschließend die group-Methode in internal/console/constructor.js. Vergleiche die ausgegebenen Runtime.consoleAPICalled-Nachrichten mit der erwarteten einzelnen startGroup-Nachricht. Als erledigt gilt die Aufgabe, wenn die zusätzliche Log-Nachricht nicht mehr erscheint, während das group-Ereignis und seine Argumente korrekt bleiben.