Allow escaping inside double quotes with a backslash (#447)

api.rst

@@ -312,6 +312,14 @@ Here ``information.cpe`` is a column name.
 
   GET /vulnerabilities?%22information.cpe%22=like.*MS* HTTP/1.1
 
+If the value filtered by the ``in`` operator has a double quote (``"``), you can escape it using a backslash ``"\""``. A backslash itself can be used with a double backslash ``"\\"``.
+
+Here ``Quote:"`` and ``Backslash:\`` are percent-encoded values. Note that ``%5C`` is the percent-encoded backslash.
+
+.. code-block:: http
+
+  GET /marks?name=in.(%22Quote:%5C%22%22,%22Backslash:%5C%5C%22) HTTP/1.1
+
 .. note::
 
    Some HTTP libraries might encode URLs automatically(e.g. :code:`axios`). In these cases you should use double quotes

releases/upcoming.rst

@@ -29,6 +29,15 @@ Added
 
   -- `@laurenceisla <https://github.com/laurenceisla>`_
 
+* Allow escaping inside double quotes with a backslash, e.g. ``?col=in.("Double\"Quote")``, ``?col=in.("Back\\slash")``. See :ref:`reserved-chars`.
+  |br| -- `@steve-chavez <https://github.com/steve-chavez>`_
+
 * Documentation improvements
 
   + Added :ref:`nested_embedding` to the :ref:`resource_embedding` section.
+
+Fixed
+-----
+
+* Fix using single double quotes (``"``) and backslashes (``/``) as values on the "in" operator
+  |br| -- `@steve-chavez <https://github.com/steve-chavez>`_