[Webkit-unassigned] [Bug 191466] New: CSS @imports in HTML missing quote marks are mistakenly hidden from the Preload Scanner

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191466

            Bug ID: 191466
           Summary: CSS @imports in HTML missing quote marks are
                    mistakenly hidden from the Preload Scanner
           Product: WebKit
           Version: Safari 12
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: csswizardry at gmail.com
                CC: beidson at apple.com

**Example URL:**

https://csswizardry.com/demos/2018/11/import/blocked-by-css.html OR https://csswizardry.com/demos/2018/11/import/blocked-by-js.html

**Steps to reproduce the problem:**

1. Have a page with a synchronous `<link rel="stylesheet" />` and/or synchronous `<script src="">` BEFORE an in-page `@import url(style.css)` that omits the optional quote marks.
2. Reload page with Network panel open
3. Note lack of parallelisation: files are serialised
4. Edit `@import url(style.css)` to be `@import url("style.css")` (note addition of quote marks)
5. Refresh and observe waterfall
6. Parallelisation!

**What is the expected behaviour?**

I would expect the Preload Scanner to identify the IMPORT regardless of the presence of quote marks

**What went wrong?**

The Preload Scanner isn’t noticing @import URLs that omit OPTIONAL quotes

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20181109/8ed03dee/attachment.html>