Model: KeyedPreviewErrorModel

Priority of a preview. For multiple previews, this will be used to sort the previews.

If not specified, the mimeType will be inferred from the Content-Type header from the error URL. If the mimeType is not specified and there is no Content-Type header, this will default to text/html.

If not specified, the locale will be infered from the Content-Language header from the error URL. In case of multiple locales, only the first one will be considered and it will be converted to snake case. For example, if the Content-Language header from the completed URL returns en-US, de, bn, it will be inferred as en_US. If the locale is not specified and there is no Content-Language header, this will default to en_US.