Spellcheck on Website – multiple fields

I have a site with a page that contains multiple editable fields with html values. User can click in them and edit the text inside them.

Note that the fields are present in a grid with PAGER.

For spellcheck functionality-

Option 1

Should I show the incorrect words marked up and let them correct the spellings word by word? Issues in this method:

This requires user to page through to see all incorrect words
Also, it is not possible to give 'correct all occurrences'/'ignore all occurrences'

Show a list of incorrect words in a pop-up and let them correct the spellings from the list?

How can I decide which way to go?