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1. #Firefox developer edition tabs stop working how to
2. #Firefox developer edition tabs stop working code

Each frame expands on click, so you can inspect the formatted data. The live-updated table shows data for sent (green arrow) and received (red arrow) WS frames. In addition, the UI now offers a fresh new Messages panel that can be used to inspect WS frames sent and received through the selected WS connection.

#Firefox developer edition tabs stop working code

The response code indicates that the server is switching to WS connection.Ĭlicking on the 101 request opens the familiar sidebar, showing details about the selected HTTP request. Only the 101 request ( WebSocket Protocol Handshake) is visible. The following screenshot shows the WS filter in action. It’s already possible to filter the content for opened WS connections in this panel, but till now there was no chance to see the actual data transferred through WS frames. The WebSocket Inspector is part of the existing Network panel UI in DevTools. Getting started with the WebSocket Inspector In the meantime, let’s dive into the new feature.

#Firefox developer edition tabs stop working how to

Want to learn more about how to set up WebSocket for your client applications? Head over to MDN’s guides. The WS inspector in Firefox DevTools currently supports Socket.IO and SockJS, but more support is in the works. These libraries can help with connection failures, proxies, authentication and authorization, scalability, and much more. Because the API sends and receives data at any time, it is used mainly in applications requiring real-time communication.Īlthough it is possible to work directly with the WS API, some existing libraries come in handy and help save time. We use the WebSocket (WS) API to create a persistent connection between a client and server.

Then, keep reading to learn more about WebSockets and the tricks that the new panel has up its sleeve.īut first, big thanks to Heng Yeow Tan, the Google Summer of Code (GSoC) student who’s responsible for the implementation. To use the inspector now, download Firefox Developer Edition, open DevTools’ Network panel to find the Messages tab. The WebSocket inspector will be released in Firefox 71, but is ready for you to use in Firefox Developer Edition now. We are especially excited about our new WebSocket inspection feature, because you told us in feedback how important it would be for your daily work. The Firefox DevTools team and our contributors were hard at work over the summer, getting Firefox 70 jam-packed with improvements.