[jfx11u] RFR: 8282134: Certain regex can cause a JS trap in WebView

[Ambarish Rapte]

Reviewed-by: kcr, arapte

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Commit messages:
 - 8282134: Certain regex can cause a JS trap in WebView

Changes: https://git.openjdk.java.net/jfx11u/pull/86/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=86&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282134
  Stats: 22 lines in 3 files changed: 21 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jfx11u/pull/86.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/86/head:pull/86

PR: https://git.openjdk.java.net/jfx11u/pull/86