Fix globals, part 2: isSecureContext

[skyclouds2001]

part of the #33019 and relates to https://github.com/orgs/mdn/discussions/360

for firefox, relates with https://bugzilla.mozilla.org/show_bug.cgi?id=1162772 and https://bugzilla.mozilla.org/show_bug.cgi?id=1269052

/cc @wbamberg

[github-actions]

Preview URLs (7 pages)

• /en-US/docs/Mozilla/Firefox/Releases/49
• /en-US/docs/Mozilla/Firefox/Releases/52
• /en-US/docs/Web/API/Window/isSecureContext
• /en-US/docs/Web/API/Window
• /en-US/docs/Web/API/WorkerGlobalScope/isSecureContext
• /en-US/docs/Web/API/WorkerGlobalScope
• /en-US/docs/Web/Security/Secure_Contexts

Flaws (3)

Note! 6 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Mozilla/Firefox/Releases/49
Title: Firefox 49 for developers
Flaw count: 3

• macros:
  • /en-US/docs/Web/CSS/align does not exist
• broken_links:
  • Can't resolve /en-US/docs/Web/API/Performance_Timeline
  • Can't resolve /en-US/docs/Mozilla/Projects/Necko/Proxy_Auto-Configuration_(PAC)_file

External URLs (2)

URL: /en-US/docs/Mozilla/Firefox/Releases/52
Title: Firefox 52 for developers

• https://bugzil.la/1269052 (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Mozilla/Firefox/Releases/49
Title: Firefox 49 for developers

• https://bugzil.la/1162772 (2 times) (Note! This may be a new URL 👀)

[wbamberg]

👍 looks great, thank you @skyclouds2001 !