[API categories](API-categories.md) | [API index](API-index.md) # V8ContextHandler (interface) Implement this interface to handle javascript exceptions globally. Table of contents: * [Notes](#notes) * [Callbacks](#callbacks) * [OnContextCreated](#oncontextcreated) * [OnContextReleased](#oncontextreleased) ## Notes Callbacks available in upstream CEF, but not yet exposed in CEF Python: * OnUncaughtException ## Callbacks ### OnContextCreated | Parameter | Type | | --- | --- | | browser | [Browser](Browser.md) | | frame | [Frame](Frame.md) | | __Return__ | void | Called shortly after (process message delay) the V8 context for a frame has been created. If the page does not contain `