Accessibility : Need alternative text for images.

[sahilbucha]

Q&A (please complete the following information)
OS: Linux
Browser: Chrome
Swagger-UI version: 3.0.7

Content & configuration
This violation is referring to the SVGs used for the unlocked and locked symbols used before and after a user has entered authorization details into the authorization dialog.

Describe the bug you're encountering
The SVGs used throughout the page are described in their button element and without proper attributes may be misread.

Expected behavior

Add the attributes aria-hidden="true" and focusable="false" to the SVG element to ensure it is not read or in the tab order.

[Ckbhatia]

Is there anyone working on this issue?

[webron]

No. PRs welcome.

[mgifford]

Some guidance on SVG images https://cariefisher.com/a11y-svg-updated/

Still some language issues, but that might be able to be resolved with inline SVGs.