As I can’t wait for lazy support dudes, I finally found a workaround that works with activated plugin.
1. In Plugin folder, go to /templates/single-product.
2. Copy files to your woocommerce theme folder to
/YOURTHEME/woocommerce/single-product/.
3. Open product-image-magnifier.php
4. In line 31, look for $magnifier_url and replace it with $image_link.
This full size image appears in the zoom box.
Save, upload, and open a beer. ??
Original code:
echo apply_filters( 'woocommerce_single_product_image_html', sprintf( '<a href="%s" itemprop="image" class="yith_magnifier_zoom woocommerce-main-image" title="%s">%s</a>', $magnifier_url, $image_title, $image ), $post->ID );
Modified code:
echo apply_filters( 'woocommerce_single_product_image_html', sprintf( '<a href="%s" itemprop="image" class="yith_magnifier_zoom woocommerce-main-image" title="%s">%s</a>', $image_link, $image_title, $image ), $post->ID );
Here’s a screenshot: Link