Chrome Version: 70.0.3538.16/11021.13.0  dev channel  Daisy,Kip,Reks
OS: Chrome

What steps will reproduce the problem?
(1)Sign into User -> Open any Web page (Ex: New tab page)-> Save the page
(2)Page is saved with '.mhtml' extension -> Now Go to Files App -> Select saved page
and Right Click for Context Menu and select 'Get info' option or click on 'Space' Key
(3)Now in General information page observe transparent preview is seen and Files App background is merged with HTML content
(Please refer Video and Screenshot)

Expected: HTML page preview should be seen clearly without any Files App content in General information page 
Actual: Instead HTML page preview is merged Files App content in General information page 

This is Regression Issue as same is working fine in M-69

@fukino: Please confirm the issue

Note:
1)In M-55 & M-56 'No Preview available' Message is seen (Please refer 'Actual_BehaviourInM-56' attachment ).
And from M-57 Blank page preview is seen 
2)From M-63 page preview is seen

 

Deleted: Actual_GeenralInfoPage.webm 3.7 MB

	Actual_GeenralInfoPage.webm 3.7 MB View Download

Deleted: Actual_GeneralInfoPage.png 217 KB

	Actual_GeneralInfoPage.png 217 KB View Download

Deleted: Expected_GeneralInfoPage.png 152 KB

	Expected_GeneralInfoPage.png 152 KB View Download

Deleted: Expected_GeneralInfoPage.webm 3.3 MB

	Expected_GeneralInfoPage.webm 3.3 MB View Download