Sense Issue with mapper attachment

I have been using mapper attachment plugin in Sense to create index, however, it is giving me some kinds of error as shown below

Uncaught QuotaExceededError: Failed to execute 'setItem' on 'Storage': Setting the value of 'sense:hist_elem_1465749726580' exceeded the quota. (http://localhost:5601/bundles/sense.bundle.js?v=9889:35820)
Version: 4.5.0
Build: 9889
Error: Uncaught QuotaExceededError: Failed to execute 'setItem' on 'Storage': Setting the value of 'sense:hist_elem_1465749726580' exceeded the quota. (http://localhost:5601/bundles/sense.bundle.js?v=9889:35820)
at window.onerror (http://localhost:5601/bundles/commons.bundle.js?v=9889:63832:25)

I have no idea what is that and is there any ways to resolve it?

My guess is that BASE64 content is too big which makes resultset too big.

You could try to set size to 1 or ask for specific fields instead of default _source.

Yes, thanks for your guidance. I solve it..