the 13th of September, 2017
New feature for accessible tab panel script
The request has been made on Github by @hans2103: being possible to specify a tab panel opened by default.
The solution has been taken from the jQuery version of tab panel accessible script: by putting data-selected="1" on the js-tablist__link you want to be selected by default, the script will make it opened automatically when displaying the page.
The tab panel page has been updated, and the demo page too, Github repositery and NPM are also up to date.