Accessibility - Add unique titles to frames

[frankspin89]

Expected Behavior

Frames must have unique title attribute
https://dequeuniversity.com/rules/axe/1.1/frame-title

Actual Behavior

<iframe class="chartjs-hidden-iframe" tabindex="-1" style="display: block; overflow: hidden; border: 0px; margin: 0px; top: 0px; left: 0px; bottom: 0px; right: 0px; height: 100%; width: 100%; position: absolute; pointer-events: none; z-index: -1;">

Environment

• vue.js version: <2.3.4>
• vue-chart.js version: <2.7.1>
• npm version: <4.2.0>

[apertureless]

Hey @frankspin89

thanks for the issue.
However this is nothing I can fix. You should create this issue on the Chart.js repository as the iframe comes from chart.js itself.

[frankspin89]

@apertureless done. chartjs/Chart.js#4534