diff --git a/src/core/index.js b/src/core/index.js
index e5f68527ad4..6cb29a30142 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -36,7 +36,7 @@ export default function SwaggerUI(opts) {
     maxDisplayedTags: null,
     filter: null,
     validatorUrl: "https://validator.swagger.io/validator",
-    oauth2RedirectUrl: `${window.location.protocol}//${window.location.host}/oauth2-redirect.html`,
+    oauth2RedirectUrl: `${window.location.protocol}//${window.location.host}${window.location.pathname.substring(0, window.location.pathname.lastIndexOf('/'))}/oauth2-redirect.html`,
     persistAuthorization: false,
     configs: {},
     custom: {},
diff --git a/test/e2e-cypress/static/pages/5085/index.html b/test/e2e-cypress/static/pages/5085/index.html
new file mode 100644
index 00000000000..df3c2a2536b
--- /dev/null
+++ b/test/e2e-cypress/static/pages/5085/index.html
@@ -0,0 +1,67 @@
+<!-- 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" >
+  <link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32" />
+  <link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16" />
+  <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" charset="UTF-8"> </script>
+<script src="/swagger-ui-standalone-preset.js" charset="UTF-8"> </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",
+      dom_id: '#swagger-ui',
+      presets: [
+        SwaggerUIBundle.presets.apis,
+        SwaggerUIStandalonePreset
+      ],
+      plugins: [
+        SwaggerUIBundle.plugins.DownloadUrl
+      ],
+      layout: SwaggerUIStandalonePreset ? "StandaloneLayout" : "BaseLayout",
+      onComplete: () => {
+        if(window.completeCount) {
+          window.completeCount++
+        } else {
+          window.completeCount = 1
+        }
+      }
+    })
+
+    window.ui = ui
+  }
+</script>
+</body>
+
+</html>
diff --git a/test/e2e-cypress/tests/features/dynamic-default-oauth.js b/test/e2e-cypress/tests/features/dynamic-default-oauth.js
index 73247781aed..dfb5d905cc2 100644
--- a/test/e2e-cypress/tests/features/dynamic-default-oauth.js
+++ b/test/e2e-cypress/tests/features/dynamic-default-oauth.js
@@ -5,4 +5,22 @@ describe("dynamic default oauth2RedirectUrl", () => {
       .then(win => win.ui.getConfigs())
       .should("include", { oauth2RedirectUrl: "http://localhost:3230/oauth2-redirect.html" })
   })
+  it("should compute an oauth2RedirectUrl based on the browser's location at runtime, including the path", () => {
+    cy.visit("/pages/5085/")
+      .window()
+      .then(win => win.ui.getConfigs())
+      .should("include", { oauth2RedirectUrl: "http://localhost:3230/pages/5085/oauth2-redirect.html" })
+  })
+  it("should compute an oauth2RedirectUrl based on the browser's location at runtime, including the path, without confusing the file name for a folder name", () => {
+    cy.visit("/pages/5085/index.html")
+      .window()
+      .then(win => win.ui.getConfigs())
+      .should("include", { oauth2RedirectUrl: "http://localhost:3230/pages/5085/oauth2-redirect.html" })
+  })
+  it("should compute an oauth2RedirectUrl based on the browser's location at runtime, including the path, even it does not end with a slash", () => {
+    cy.visit("/pages/5085")
+      .window()
+      .then(win => win.ui.getConfigs())
+      .should("include", { oauth2RedirectUrl: "http://localhost:3230/pages/5085/oauth2-redirect.html" })
+  })
 })
