diff --git a/src/core/index.js b/src/core/index.js
index 0af27ee4..f17b5f9c 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -148,7 +148,7 @@ module.exports = function SwaggerUI(opts) {
         system.specActions.updateUrl("")
         system.specActions.updateLoadingStatus("success")
         system.specActions.updateSpec(JSON.stringify(mergedConfig.spec))
-      } else if (system.specActions.download && mergedConfig.url) {
+      } else if (system.specActions.download && mergedConfig.url && !mergedConfig.urls) {
         system.specActions.updateUrl(mergedConfig.url)
         system.specActions.download(mergedConfig.url)
       }
diff --git a/test/e2e-cypress/static/pages/5138/api-with-examples.yaml b/test/e2e-cypress/static/pages/5138/api-with-examples.yaml
new file mode 100644
index 00000000..09003b6a
--- /dev/null
+++ b/test/e2e-cypress/static/pages/5138/api-with-examples.yaml
@@ -0,0 +1,167 @@
+openapi: "3.0.0"
+info:
+  title: Simple API overview
+  version: 2.0.0
+paths:
+  /:
+    get:
+      operationId: listVersionsv2
+      summary: List API versions
+      responses:
+        '200':
+          description: |-
+            200 response
+          content:
+            application/json:
+              examples: 
+                foo:
+                  value: {
+                    "versions": [
+                        {
+                            "status": "CURRENT",
+                            "updated": "2011-01-21T11:33:21Z",
+                            "id": "v2.0",
+                            "links": [
+                                {
+                                    "href": "http://127.0.0.1:8774/v2/",
+                                    "rel": "self"
+                                }
+                            ]
+                        },
+                        {
+                            "status": "EXPERIMENTAL",
+                            "updated": "2013-07-23T11:33:21Z",
+                            "id": "v3.0",
+                            "links": [
+                                {
+                                    "href": "http://127.0.0.1:8774/v3/",
+                                    "rel": "self"
+                                }
+                            ]
+                        }
+                    ]
+                 }
+        '300':
+          description: |-
+            300 response
+          content:
+            application/json: 
+              examples: 
+                foo:
+                  value: |
+                   {
+                    "versions": [
+                          {
+                            "status": "CURRENT",
+                            "updated": "2011-01-21T11:33:21Z",
+                            "id": "v2.0",
+                            "links": [
+                                {
+                                    "href": "http://127.0.0.1:8774/v2/",
+                                    "rel": "self"
+                                }
+                            ]
+                        },
+                        {
+                            "status": "EXPERIMENTAL",
+                            "updated": "2013-07-23T11:33:21Z",
+                            "id": "v3.0",
+                            "links": [
+                                {
+                                    "href": "http://127.0.0.1:8774/v3/",
+                                    "rel": "self"
+                                }
+                            ]
+                        }
+                    ]
+                   }
+  /v2:
+    get:
+      operationId: getVersionDetailsv2
+      summary: Show API version details
+      responses:
+        '200':
+          description: |-
+            200 response
+          content:
+            application/json: 
+              examples:
+                foo:
+                  value: {
+                    "version": {
+                      "status": "CURRENT",
+                      "updated": "2011-01-21T11:33:21Z",
+                      "media-types": [
+                          {
+                              "base": "application/xml",
+                              "type": "application/vnd.openstack.compute+xml;version=2"
+                          },
+                          {
+                              "base": "application/json",
+                              "type": "application/vnd.openstack.compute+json;version=2"
+                          }
+                      ],
+                      "id": "v2.0",
+                      "links": [
+                          {
+                              "href": "http://127.0.0.1:8774/v2/",
+                              "rel": "self"
+                          },
+                          {
+                              "href": "http://docs.openstack.org/api/openstack-compute/2/os-compute-devguide-2.pdf",
+                              "type": "application/pdf",
+                              "rel": "describedby"
+                          },
+                          {
+                              "href": "http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl",
+                              "type": "application/vnd.sun.wadl+xml",
+                              "rel": "describedby"
+                          },
+                          {
+                            "href": "http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl",
+                            "type": "application/vnd.sun.wadl+xml",
+                            "rel": "describedby"
+                          }
+                      ]
+                    }
+                  }
+        '203':
+          description: |-
+            203 response
+          content:
+            application/json: 
+              examples:
+                foo:
+                  value: {
+                    "version": {
+                      "status": "CURRENT",
+                      "updated": "2011-01-21T11:33:21Z",
+                      "media-types": [
+                          {
+                              "base": "application/xml",
+                              "type": "application/vnd.openstack.compute+xml;version=2"
+                          },
+                          {
+                              "base": "application/json",
+                              "type": "application/vnd.openstack.compute+json;version=2"
+                          }
+                      ],
+                      "id": "v2.0",
+                      "links": [
+                          {
+                              "href": "http://23.253.228.211:8774/v2/",
+                              "rel": "self"
+                          },
+                          {
+                              "href": "http://docs.openstack.org/api/openstack-compute/2/os-compute-devguide-2.pdf",
+                              "type": "application/pdf",
+                              "rel": "describedby"
+                          },
+                          {
+                              "href": "http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl",
+                              "type": "application/vnd.sun.wadl+xml",
+                              "rel": "describedby"
+                          }
+                      ]
+                    }
+                  }
diff --git a/test/e2e-cypress/static/pages/5138/index.html b/test/e2e-cypress/static/pages/5138/index.html
new file mode 100644
index 00000000..3b25d093
--- /dev/null
+++ b/test/e2e-cypress/static/pages/5138/index.html
@@ -0,0 +1,76 @@
+<!-- HTML for dev server -->
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Swagger UI</title>
+  <link rel="stylesheet" type="text/css" href="/swagger-ui.css">
+  <style>
+    html {
+      box-sizing: border-box;
+      overflow: -moz-scrollbars-vertical;
+      overflow-y: scroll;
+    }
+
+    *,
+    *:before,
+    *:after {
+      box-sizing: inherit;
+    }
+
+    body {
+      margin: 0;
+      background: #fafafa;
+    }
+  </style>
+</head>
+
+<body>
+
+  <div id="swagger-ui"></div>
+
+  <script src="/swagger-ui-bundle.js"> </script>
+  <script src="/swagger-ui-standalone-preset.js"> </script>
+  <script>
+    window.onload = function () {
+      window["SwaggerUIBundle"] = window["swagger-ui-bundle"]
+      window["SwaggerUIStandalonePreset"] = window["swagger-ui-standalone-preset"]
+      // Build a system
+      const ui = SwaggerUIBundle({
+        url: "https://petstore.swagger.io/v2/swagger.json",
+        urls: [
+          {
+            name: "USPTO",
+            url: "./uspto.yaml"
+          },
+          {
+            name: "Examples",
+            url: "./api-with-examples.yaml"
+          },
+        ],
+        dom_id: '#swagger-ui',
+        presets: [
+          SwaggerUIBundle.presets.apis,
+          SwaggerUIStandalonePreset
+        ],
+        plugins: [
+          SwaggerUIBundle.plugins.DownloadUrl
+        ],
+        layout: "StandaloneLayout",
+        onComplete: () => {
+          if (window.completeCount) {
+            window.completeCount++
+          } else {
+            window.completeCount = 1
+          }
+        }
+      })
+
+      window.ui = ui
+    }
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/test/e2e-cypress/static/pages/5138/uspto.yaml b/test/e2e-cypress/static/pages/5138/uspto.yaml
new file mode 100644
index 00000000..8e9b159f
--- /dev/null
+++ b/test/e2e-cypress/static/pages/5138/uspto.yaml
@@ -0,0 +1,210 @@
+openapi: 3.0.1
+servers:
+  - url: '{scheme}://developer.uspto.gov/ds-api'
+    variables:
+      scheme:
+        description: 'The Data Set API is accessible via https and http'
+        enum:
+          - 'https'
+          - 'http'
+        default: 'https'
+info:
+  description: >-
+    The Data Set API (DSAPI) allows the public users to discover and search
+    USPTO exported data sets. This is a generic API that allows USPTO users to
+    make any CSV based data files searchable through API. With the help of GET
+    call, it returns the list of data fields that are searchable. With the help
+    of POST call, data can be fetched based on the filters on the field names.
+    Please note that POST call is used to search the actual data. The reason for
+    the POST call is that it allows users to specify any complex search criteria
+    without worry about the GET size limitations as well as encoding of the
+    input parameters.
+  version: 1.0.0
+  title: USPTO Data Set API
+  contact:
+    name: Open Data Portal
+    url: 'https://developer.uspto.gov'
+    email: developer@uspto.gov
+tags:
+  - name: metadata
+    description: Find out about the data sets
+  - name: search
+    description: Search a data set
+paths:
+  /:
+    get:
+      tags:
+        - metadata
+      operationId: list-data-sets
+      summary: List available data sets
+      responses:
+        '200':
+          description: Returns a list of data sets
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/dataSetList'
+              example:
+                {
+                  "total": 2,
+                  "apis": [
+                    {
+                      "apiKey": "oa_citations",
+                      "apiVersionNumber": "v1",
+                      "apiUrl": "https://developer.uspto.gov/ds-api/oa_citations/v1/fields",
+                      "apiDocumentationUrl": "https://developer.uspto.gov/ds-api-docs/index.html?url=https://developer.uspto.gov/ds-api/swagger/docs/oa_citations.json"
+                    },
+                    {
+                      "apiKey": "cancer_moonshot",
+                      "apiVersionNumber": "v1",
+                      "apiUrl": "https://developer.uspto.gov/ds-api/cancer_moonshot/v1/fields",
+                      "apiDocumentationUrl": "https://developer.uspto.gov/ds-api-docs/index.html?url=https://developer.uspto.gov/ds-api/swagger/docs/cancer_moonshot.json"
+                    }
+                  ]
+                }
+  /{dataset}/{version}/fields:
+    get:
+      tags:
+        - metadata
+      summary: >-
+        Provides the general information about the API and the list of fields
+        that can be used to query the dataset.
+      description: >-
+        This GET API returns the list of all the searchable field names that are
+        in the oa_citations. Please see the 'fields' attribute which returns an
+        array of field names. Each field or a combination of fields can be
+        searched using the syntax options shown below.
+      operationId: list-searchable-fields
+      parameters:
+        - name: dataset
+          in: path
+          description: 'Name of the dataset.'
+          required: true
+          example: "oa_citations"
+          schema:
+            type: string
+        - name: version
+          in: path
+          description: Version of the dataset.
+          required: true
+          example: "v1"
+          schema:
+            type: string
+      responses:
+        '200':
+          description: >-
+            The dataset API for the given version is found and it is accessible
+            to consume.
+          content:
+            application/json:
+              schema:
+                type: string
+        '404':
+          description: >-
+            The combination of dataset name and version is not found in the
+            system or it is not published yet to be consumed by public.
+          content:
+            application/json:
+              schema:
+                type: string
+  /{dataset}/{version}/records:
+    post:
+      tags:
+        - search
+      summary: >-
+        Provides search capability for the data set with the given search
+        criteria.
+      description: >-
+        This API is based on Solr/Lucense Search. The data is indexed using
+        SOLR. This GET API returns the list of all the searchable field names
+        that are in the Solr Index. Please see the 'fields' attribute which
+        returns an array of field names. Each field or a combination of fields
+        can be searched using the Solr/Lucene Syntax. Please refer
+        https://lucene.apache.org/core/3_6_2/queryparsersyntax.html#Overview for
+        the query syntax. List of field names that are searchable can be
+        determined using above GET api.
+      operationId: perform-search
+      parameters:
+        - name: version
+          in: path
+          description: Version of the dataset.
+          required: true
+          schema:
+            type: string
+            default: v1
+        - name: dataset
+          in: path
+          description: 'Name of the dataset. In this case, the default value is oa_citations'
+          required: true
+          schema:
+            type: string
+            default: oa_citations
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  type: object
+                  additionalProperties:
+                    type: object
+        '404':
+          description: No matching record found for the given criteria.
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              type: object
+              properties:
+                criteria:
+                  description: >-
+                    Uses Lucene Query Syntax in the format of
+                    propertyName:value, propertyName:[num1 TO num2] and date
+                    range format: propertyName:[yyyyMMdd TO yyyyMMdd]. In the
+                    response please see the 'docs' element which has the list of
+                    record objects. Each record structure would consist of all
+                    the fields and their corresponding values.
+                  type: string
+                  default: '*:*'
+                start:
+                  description: Starting record number. Default value is 0.
+                  type: integer
+                  default: 0
+                rows:
+                  description: >-
+                    Specify number of rows to be returned. If you run the search
+                    with default values, in the response you will see 'numFound'
+                    attribute which will tell the number of records available in
+                    the dataset.
+                  type: integer
+                  default: 100
+              required:
+                - criteria
+components:
+  schemas:
+    dataSetList:
+      type: object
+      properties:
+        total:
+          type: integer
+        apis:
+          type: array
+          items:
+            type: object
+            properties:
+              apiKey:
+                type: string
+                description: To be used as a dataset parameter value
+              apiVersionNumber:
+                type: string
+                description: To be used as a version parameter value
+              apiUrl:
+                type: string
+                format: uriref
+                description: "The URL describing the dataset's fields"
+              apiDocumentationUrl:
+                type: string
+                format: uriref
+                description: A URL to the API console for each API
diff --git a/test/e2e-cypress/tests/bugs/5138.js b/test/e2e-cypress/tests/bugs/5138.js
new file mode 100644
index 00000000..0f826b12
--- /dev/null
+++ b/test/e2e-cypress/tests/bugs/5138.js
@@ -0,0 +1,10 @@
+describe("#5138: unwanted `url`/`urls` interactions", () => {
+  it("should stably render the first `urls` entry", () => {
+    cy
+      .visit("/pages/5138/")
+      .get("h2.title")
+      .contains("USPTO Data Set API")
+      .wait(3000)
+      .contains("USPTO Data Set API")
+  })
+})