Dashicons required

Hello,
I noticed that you use dashicons for the close icons on mobile modal dialogs.
Many optimization plugins unload dashicons and therefore the close button is not visible anymore on phones.

As a suggestion: Maybe you could consider using your iconfont or a UTF-character instead?

#reviews.cr-reviews-ajax-reviews div.cr-ajax-reviews-cus-images-modal button.cr-ajax-reviews-cus-images-close .dashicons-no:before, 
#cr_qna.cr-qna-block div.cr-qna-new-q-overlay .cr-qna-new-q-form .cr-qna-new-q-form-close .dashicons-no:before {
    content: "✖"; 
}

Best,
Dan