Crash unwrapping nil in injectDeferredObject (iOS)

[TSedlar]

I was unable to get the stack trace via running through flutter and had to get it through XCode.

The lines are located here in InAppWebViewer.swift

I have limited swift knowledge, but tried to fix it myself and the error does not seem to occur when I replace the code with the following:

if error != nil {
    do {
        let userInfo = (error! as NSError).userInfo
        let srcURL = userInfo["WKJavaScriptExceptionSourceURL"]
        let lineNum = userInfo["WKJavaScriptExceptionLineNumber"]
        let msg = userInfo["WKJavaScriptExceptionMessage"]
        self.onConsoleMessage(sourceURL: (srcURL as? URL)?.absoluteString ?? "", lineNumber: lineNum as? Int ?? -1, message: msg as? String ?? "unknown", messageLevel: "ERROR")
    } catch {
        print("error @ injectDeferredObject")
    }
}

I'm sure there should be a more correct way to fix it, but I figured I would just bring about this issue here anyways.

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[github-actions]

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