Function handleAsyncError

dash/dash-renderer/src/actions/index.js:193–204

(err, message, dispatch)

}

export function handleAsyncError(err, message, dispatch) {
    // Handle html error responses
    if (err && typeof err.text === 'function') {
        err.text().then(text => {
            const error = {message, html: text};
            dispatch(onError({type: 'backEnd', error}));
        });
    } else {
        const error = err instanceof Error ? err : {message, html: err};
        dispatch(onError({type: 'backEnd', error}));
    }
}