9.1.1 Release (#4254)

Co-authored-by: Emily Rohrbough <emilyrohrbough@users.noreply.github.com>

content/_changelogs/9.1.1.md

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+## 9.1.1
+
+_Released 12/03/2021_
+
+**Bugfixes:**
+
+- Fixed a regression in [9.1.0](/guides/references/changelog#9-1-0) where our
+  built binary didn't contain patches to some dependencies. Addressed in
+  [#19239](https://github.com/cypress-io/cypress/pull/19239). This fixed some
+  issues including:
+  - Requests containing `~` will no longer be improperly encoded. Fixes
+    [#19083](https://github.com/cypress-io/cypress/issues/19083),
+    [#19084](https://github.com/cypress-io/cypress/issues/19084),
+    [#19115](https://github.com/cypress-io/cypress/issues/19115),
+    [#19096](https://github.com/cypress-io/cypress/issues/19096),
+    [#19178](https://github.com/cypress-io/cypress/issues/19178).
+  - A TypeError displaying `data.hasOwnProperty is not a function` will no
+    longer throw in some situations. Fixes
+    [#19091](https://github.com/cypress-io/cypress/issues/19091).
+  - Empty extra hooks will no longer be sent as data when recording to the
+    Dashboard. Fixes
+    [#19087](https://github.com/cypress-io/cypress/issues/19087).
+  - The Runner hanging when baseUrl is set to null to load a local file. Fixes
+    [#19105](https://github.com/cypress-io/cypress/issues/19105)
+- When using the default configuration of `"nodeVersion": "system"` with an
+  installed system node >=17, Cypress will now work properly rather than throw
+  an error incorrectly pointing to the user's plugin file. Fixes
+  [#18914](https://github.com/cypress-io/cypress/issues/18914).
+- Shadow DOM elements no longer error as hidden during actionability when the
+  element is covered by its parent shadow root. Fixes
+  [#18008](https://github.com/cypress-io/cypress/issues/18008).
+- When using `.type()` events now correctly propagate out of the shadow DOM.
+  Fixes [#17531](https://github.com/cypress-io/cypress/issues/17531).
+- The `this` context is now properly preserved when overwriting `cy.clock()`.
+  Fixes [#19158](https://github.com/cypress-io/cypress/issues/19158).
+
+**Dependencies:**
+
+- Upgraded `@cypress/request` from `2.88.7` to `2.88.10`. Addressed in
+  [#19099](https://github.com/cypress-io/cypress/issues/19099).