Since many of these events signal errors and problems, most of the time you want to log them, halt program execution, or ignore and move on. Logging is also shown in Playwright documentation about network, which I will use as a base for examples in this article.
Usually you want to define event handlers as normal functions. But when you attempt that, you might run into another problem - Playwright invokes event handler with some event-related data, that data does not contain any reference back to page object, and page object might contain some important contextual information.
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