[jfx23u] RFR: 8335548: testCookieEnabled fails with WebKit 619.1

[Jay Bhaskar]

A clean backport to jfx23u. The fix is for a test bug for cookie issue. WebView needs to load a dummy url before testing cookie. The test passes with the fix and fails without fix.

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Commit messages:
 - Backport 33d82c04dd8c4c3fa9188da5c263e0f406a2c920

Changes: https://git.openjdk.org/jfx23u/pull/6/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx23u&pr=6&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335548
  Stats: 14 lines in 2 files changed: 12 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jfx23u/pull/6.diff
  Fetch: git fetch https://git.openjdk.org/jfx23u.git pull/6/head:pull/6

PR: https://git.openjdk.org/jfx23u/pull/6