diff --git a/src/core/components/auth/oauth2.jsx b/src/core/components/auth/oauth2.jsx
index 5daa2143..aef95ac7 100644
--- a/src/core/components/auth/oauth2.jsx
+++ b/src/core/components/auth/oauth2.jsx
@@ -11,6 +11,7 @@ export default class Oauth2 extends React.Component {
     authSelectors: PropTypes.object.isRequired,
     authActions: PropTypes.object.isRequired,
     errSelectors: PropTypes.object.isRequired,
+    oas3Selectors: PropTypes.object.isRequired,
     specSelectors: PropTypes.object.isRequired,
     errActions: PropTypes.object.isRequired,
     getConfigs: PropTypes.any
@@ -51,12 +52,19 @@ export default class Oauth2 extends React.Component {
   }
 
   authorize =() => {
-    let { authActions, errActions, getConfigs, authSelectors } = this.props
+    let { authActions, errActions, getConfigs, authSelectors, oas3Selectors } = this.props
     let configs = getConfigs()
     let authConfigs = authSelectors.getConfigs()
 
     errActions.clear({authId: name,type: "auth", source: "auth"})
-    oauth2Authorize({auth: this.state, authActions, errActions, configs, authConfigs })
+    oauth2Authorize({
+      auth: this.state,
+      currentServer: oas3Selectors.serverEffectiveValue(oas3Selectors.selectedServer()),
+      authActions,
+      errActions,
+      configs,
+      authConfigs
+    })
   }
 
   onScopeChange =(e) => {
diff --git a/src/core/oauth2-authorize.js b/src/core/oauth2-authorize.js
index 15f2054f..03d62864 100644
--- a/src/core/oauth2-authorize.js
+++ b/src/core/oauth2-authorize.js
@@ -1,8 +1,9 @@
+import parseUrl from "url-parse"
 import win from "core/window"
 import Im from "immutable"
 import { btoa, sanitizeUrl, generateCodeVerifier, createCodeChallenge } from "core/utils"
 
-export default function authorize ( { auth, authActions, errActions, configs, authConfigs={} } ) {
+export default function authorize ( { auth, authActions, errActions, configs, authConfigs={}, currentServer } ) {
   let { schema, scopes, name, clientId } = auth
   let flow = schema.get("flow")
   let query = []
@@ -95,7 +96,17 @@ export default function authorize ( { auth, authActions, errActions, configs, au
   }
 
   const authorizationUrl = schema.get("authorizationUrl")
-  const sanitizedAuthorizationUrl = sanitizeUrl(authorizationUrl)
+  let sanitizedAuthorizationUrl
+  if (currentServer) {
+    // OpenAPI 3
+    sanitizedAuthorizationUrl = parseUrl(
+      sanitizeUrl(authorizationUrl),
+      currentServer,
+      true
+    ).toString()
+  } else {
+    sanitizedAuthorizationUrl = sanitizeUrl(authorizationUrl)
+  }
   let url = [sanitizedAuthorizationUrl, query.join("&")].join(authorizationUrl.indexOf("?") === -1 ? "?" : "&")
 
   // pass action authorizeOauth2 and authentication data through window
diff --git a/src/core/plugins/auth/actions.js b/src/core/plugins/auth/actions.js
index d3c4e3af..6c124608 100644
--- a/src/core/plugins/auth/actions.js
+++ b/src/core/plugins/auth/actions.js
@@ -174,8 +174,8 @@ export const authorizeRequest = ( data ) => ( { fn, getConfigs, authActions, err
   let parsedUrl
 
   if (specSelectors.isOAS3()) {
-    const server = oas3Selectors.selectedServer()
-    parsedUrl = parseUrl(url, oas3Selectors.serverEffectiveValue({ server }), true)
+    let finalServerUrl = oas3Selectors.serverEffectiveValue(oas3Selectors.selectedServer())
+    parsedUrl = parseUrl(url, finalServerUrl, true)
   } else {
     parsedUrl = parseUrl(url, specSelectors.url(), true)
   }
diff --git a/test/unit/core/oauth2-authorize.js b/test/unit/core/oauth2-authorize.js
index 2626033a..ddf2feda 100644
--- a/test/unit/core/oauth2-authorize.js
+++ b/test/unit/core/oauth2-authorize.js
@@ -41,6 +41,27 @@ describe("oauth2", () => {
       windowOpenSpy.mockReset()
     })
 
+    it("should build authorize url relative", function () {
+      const windowOpenSpy = jest.spyOn(win, "open")
+      let relativeMockSchema = {
+        flow: "accessCode",
+        authorizationUrl: "/testAuthorizationUrl"
+      }
+      let relativeAuthConfig = {
+        auth: { schema: { get: (key) => relativeMockSchema[key] } },
+        authActions: {},
+        errActions: {},
+        configs: { oauth2RedirectUrl: "" },
+        authConfigs: {},
+        currentServer: "https://currentserver"
+      }
+      oauth2Authorize(relativeAuthConfig)
+      expect(windowOpenSpy.mock.calls.length).toEqual(1)
+      expect(windowOpenSpy.mock.calls[0][0]).toMatch("https://currentserver/testAuthorizationUrl?response_type=code&redirect_uri=&state=")
+
+      windowOpenSpy.mockReset()
+    })
+
     it("should append query parameters to authorizeUrl with query parameters", () => {
       const windowOpenSpy = jest.spyOn(win, "open")
       mockSchema.authorizationUrl = "https://testAuthorizationUrl?param=1"