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Later Through The Page Can Also Directly Browse U Disk, Google's New Technology! Apr 17, 2017

Two Google developers submitted a draft to the W3C WICG (Web Incubator Community Group), which depicts a way to connect U disk to web pages. Through this method can use the page directly to the U disk to read and write operations.

usb disk

The new API is called WebUSB, and the device manufacturer can provide a "registration and login page" that hosts the JavaScript SDK for the U disk they produce. The site can load these SDKs as iframes, allowing web pages to access U disk and relay instructions.

In order to protect privacy and security, WebUSB also includes a system similar to cross-domain resource sharing to avoid the abuse of the function. WebUSB allows the U disk to select the white list to provide data, U disk determines the data provided to the user, the site has no decision on the U disk.