Regression: -webkit-box-orient rules removed

While upgrading my dependencies on a project with some pretty old css (and which includes some webkit-specific hacks), I noticed an issue. Autoprefixer version 6.7.0 now entirely removes “-webkit-box-orient” rules. Version 6.6.1 did not have this issue.

.foo {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-align: stretch;
}

->

.foo {
  display: -webkit-box;
  -webkit-box-align: stretch;
}

Here’s the code I’ve tested with:

require('postcss')([require('postcss-cssnext')({browsers: 'chrome >= 42, safari >= 8'})]).process('.foo { display: -webkit-box; -webkit-box-orient: vertical; -webkit-box-align: stretch; }').css

[Lars-Weber]

Possibly helpful for anyone reading up on this thread and problem, least intrusive option to prevent the removal of the line in question is to just disable the autoprefixer for this line/section

    /* autoprefixer: off */
    -webkit-box-orient: vertical;
    /* autoprefixer: on */

[kmvan]

@ai

  /* autoprefixer: ignore next */
  -webkit-box-orient: vertical;

It works, thank you very much.