OnContextCreated - GetMainFrame() is nullptr with CEF 79

[Astaroth]

I'm trying to navigate to a html file and the HTTP request for an html was dying in CefLoadHandler::OnLoadError() with ERR_FAILED.

The problem was a crash here due to pBrowser->GetMainFrame() being null.

void CMyCefRenderProcessHandler::OnContextCreated(
CefRefPtr<CefBrowser> pBrowser,
CefRefPtr<CefFrame> pFrame,
CefRefPtr<CefV8Context> pContext) /*override*/
{
CEF_REQUIRE_RENDERER_THREAD();
pBrowser->GetMainFrame()->GetURL();
}

Adding an if (pBrowser->GetMainFrame()) check before the GetURL() call fixes the problem.

Is it a bug that the main frame can be null here? Or is it expected?
I never saw this with CEF 77. BTW, I'm using Windows 10 x64.

[Astaroth]

This could be a documentation bug because the comments say the function returns a frame, and don't say anything about returning nullptr

///
// Returns the main (top-level) frame for the browser window.
///
/*--cef()--*/
virtual CefRefPtr<CefFrame> GetMainFrame() = 0;

[Czarek]

Maybe related: https://bitbucket.org/chromiumembedded/ ... 97c7d2d249

[magreenblatt]

Please add a bug.