What is WebSocket?

WebSocket is a computer communications protocol that enables messages to be sent to and from the server. Basically, it is a means of communication between you and the server. The WebSocket specification defines an API for establishing "socket" connections between a web browser and the machine. In other words, there is a persistent connection between you and the server, and both sides of the connection can start sending data at any time. The XTM Workbench application uses WebSockets to establish the connection.

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Generally, there are a few issues involving WebSockets. Below are the most common cases:

JSERROR

The JSERROR (or JavaScript Error) is usually an issue with a user'’s browser but it might sometimes also be caused by an XTM Cloud front-end bug. To be certain, though, proper investigation is required. As a user, you can help the XTM International Support team by providing the relevant information, to speed up issue resolution.

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See How to use browser's developer tools (Dev Tools) for help.

NO_BROWSER_PING

The NO_BROWSER_PING issue occurs when the XTM Cloud application cannot ping the browser anymore, which leads to the WebSockets disconnection. This is usually a user-end issue, and the connection between the browser and XTM Workbench can be blocked by, for example, some software.

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