当网站想要在计算机上使用其他存储时，如何显示警告消息

Question

How can I create an alert message when a website want to use additional storage on computer in Internet Explorer. The message is like:

do you want to allow this website to use additional storage on your computer?

Answer 1

For security reasons MSIE browsers initially allow a maximum of 10Mb of local storage per website.... Other browsers are yet to mitigate this possible security flaw.

Tools>Internet Options>General tab, Browsing History section, 'Settings' button, Website Databases and caching.

Either increase the allowed storage limit or uncheck the option to allow websites to use local storage.

for more info you can follow https://social.technet.microsoft.com/Forums/en-US/419350ab-84d2-4b63-97ee-439b59749b05/do-you-want-to-allow-outlookcom-to-use-additional-storage-on-your-computer?forum=ieitprocurrentver