Tested on Magento versions 2.2.7 and 2.3.1 with snowdog/theme-blank-sass in version 1.2.0.
When the magnifier is enabled and set to mode=inside (mode=outside works, although probably missing some styles as well) on etc/view.xml as below, the magnifier does not show correctly.
Tested on Magento versions 2.2.7 and 2.3.1 with snowdog/theme-blank-sass in version 1.2.0.
When the magnifier is enabled and set to mode=inside (mode=outside works, although probably missing some styles as well) on etc/view.xml as below, the magnifier does not show correctly.
<var name="magnifier">
...
<var name="enabled">true</var>
<var name="mode">inside</var>
</var>
Example here with a blank theme enabled (M2.2.7, theme1.2.0): http://magentodemo.magento2e.com/olivia-1-4-zip-light-jacket.html