dynamic x-auth value in header.

[manoj-mass]

Hi @tilgovi ,

In annotator.storage.http I am using a dynamic header value which changes time to time. The issue is annotatorjs is sending the initial Token only. It won't change the header value as it get updated. Is this a issue or are there any workarounds for this.

headers: {
                        'X-Authorization': window.dynamicToken,
                    }