Prism not working with array params in path

[brendarearden]

Context

Using an array in the path param results in an internal server error

Current Behavior

When using an array path param, the follow error occurs:

Expected Behavior

It should parse correctly

Possible Workaround/Solution

Steps to Reproduce

minimum reproducible spec:

swagger: '2.0'
info:
  title: test-2.0
  version: '1.0'
host: 'localhost:3000'
schemes:
  - http
produces:
  - application/json
consumes:
  - application/json
paths:
  '/users/{userIds}':
    parameters:
      - type: array
        name: userIds
        in: path
        description: Array of additional Ids
        items:
          type: string
        required: true
    get:
      summary: Get User Info by User ID
      tags: []
      responses:
        '200':
          description: User Found
          schema:
            $ref: '#/definitions/User'
          examples:
            Get User Alice Smith:
              id: 142
              firstName: Alice
              lastName: Smith
              email: alice.smith@gmail.com
              dateOfBirth: '1997-10-31'
              emailVerified: true
              signUpDate: '2019-08-24'
        '404':
          description: User Not Found
          schema:
            type: 'null'
          examples: {}
      operationId: get-users-userId
      description: Retrieve the information of the user with the matching user ID.
      parameters: []
definitions:
  User:
    title: User
    type: object
    properties:
      id:
        type: integer
        description: Unique identifier for the given user.
      firstName:
        type: string
      lastName:
        type: string
      email:
        type: string
        format: email
      dateOfBirth:
        type: string
        format: date
        example: '1997-10-31'
      emailVerified:
        type: boolean
        description: Set to true if the user's email has been verified.
      createDate:
        type: string
        format: date
        description: The date that the user was created.
    required:
      - id
      - firstName
      - lastName
      - email
      - emailVerified

1. run prism mock using provided spec
2. attempt to make a mocked call
3. see error

Environment

• Version used:
• Environment name and version (e.g. Chrome 39, node.js 5.4):
• Operating System and version (desktop or mobile):
• Link to your environment/workspace/project: