# Invalid redirect 4,700 for testable url **URL:** \ **Category:** API and Webhooks\ **Created:** [March 30, 2020, 3:30pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196 "2020-03-30T15:30:26Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![ncsquared](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ncsquared/32/4150_2.png) [@ncsquared](https://devforum.zoom.us/u/ncsquared)\ **Post date:** [March 30, 2020, 3:30pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/1 "2020-03-30T15:30:26Z")
**Description** The “Testable URL” generated for Local Testing fails **Error** “Invalid redirect: [https://reservoirs.co/auth](https://reservoirs.co/auth) (4,700)” **Which App Type (OAuth / Chatbot / JWT / Webhook)?** OAuth app. **Which Endpoint/s?** Test URL: [https://zoom.us/oauth/authorize?client\_id=XXXXXXX&response\_type=code&redirect\_uri=https%3A%2F%2Freservoirs.co%2Fauth](https://zoom.us/oauth/authorize?client_id=XXXXXXX&response_type=code&redirect_uri=https%3A%2F%2Freservoirs.co%2Fauth) (masked out the client\_id…) **How To Reproduce (If applicable)** 1. Go to app in marketplace 2. Under Local Test, click “Generate” for the Testable Url 3. Copy generated URL 4. Paste URL to browser **Screenshots (If applicable)** See attached ![Screen Shot 2020-03-30 at 18.28.13](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/6/677df576c1d33021b05646f33dd8804773c237cc.png) ---
**Author:** ![mac](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mac/32/3311_2.png) [@mac](https://devforum.zoom.us/u/mac)\ **Post date:** [March 30, 2020, 3:41pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/2 "2020-03-30T15:41:05Z")
Just adding this here, as I’m experiencing similiar issue since this morning GMT > [@Invalid redirect url - 127.0.01 no longer working as redirect target](https://devforum.zoom.us/t/invalid-redirect-url-127-0-01-no-longer-working-as-redirect-target/10137): > > Description Over the weekend I seem to have lost the ability to test my integration locally. I have an app running on 127.0.0.1:8080 that I used to be able to signup on. This morning I tried to troubleshoot something and came across this - is there some news that I missed about this? Tried with [https://github.com/zoom/zoom-oauth-sample-app](https://github.com/zoom/zoom-oauth-sample-app) – same effect Error Invalid redirect: [http://127.0.0.1:8080/{myCustomEndpoint}](http://127.0.0.1:8080/%7BmyCustomEndpoint%7D) (4,700) Which App Type (OAuth / Chatbot / JWT / Webhook)? OAuth Which En… ---
**Author:** ![ncsquared](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ncsquared/32/4150_2.png) [@ncsquared](https://devforum.zoom.us/u/ncsquared)\ **Post date:** [March 30, 2020, 3:47pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/3 "2020-03-30T15:47:18Z")
@mac it’s been flaky for me for the last couple of days. I just tried changing my redir url in the app credentials section to http instead of https, and now this error stopped. Don’t know if that’s of any help to you ---
**Author:** ![mac](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mac/32/3311_2.png) [@mac](https://devforum.zoom.us/u/mac)\ **Post date:** [March 30, 2020, 5:08pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/4 "2020-03-30T17:08:05Z")
Thanks for updating this post, yeah I am running on http and noticed it sometimes didn’t like localhost, so switch to 127.0.0.1 and it stopped working somewhere between today and Friday ☹ Glat it works for you though! ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [March 31, 2020, 5:04am UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/5 "2020-03-31T05:04:02Z")
Hey @ncsquared, Do you have [https://reservoirs.co/auth](https://reservoirs.co/auth) in your whitelist? Thanks, Tommy ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [March 31, 2020, 5:05am UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/6 "2020-03-31T05:05:17Z")
Hey @mac, Can you try using an [ngrok](https://ngrok.com) https url instead of localhost and a localhost IP? Thanks, Tommy ---
**Author:** ![ncsquared](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ncsquared/32/4150_2.png) [@ncsquared](https://devforum.zoom.us/u/ncsquared)\ **Post date:** [March 31, 2020, 8:52pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/7 "2020-03-31T20:52:10Z")
@tommy I think it was as https in the whitelist and http in redirect URL which caused the issue. I have whitelisted the exact same as redirect, and it seems to work now. Thank you! ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 1, 2020, 6:54am UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/8 "2020-04-01T06:54:36Z")
You are welcome! Happy to hear you got it working! 🙂 Thanks, Tommy ---
**Author:** ![kumar.asom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kumar.asom/32/5799_2.png) [@kumar.asom](https://devforum.zoom.us/u/kumar.asom)\ **Post date:** [April 11, 2020, 4:00am UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/9 "2020-04-11T04:00:14Z")
Hello, Are you able to get the auth code now? Could you please share how did you fix this issue? Many thanks. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 11, 2020, 6:59am UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/10 "2020-04-11T06:59:01Z")
Hey @kumar.asom, Please share what specifically is the issue. Also share details and steps to reproduce so I can help. Thanks, Tommy ---
**Author:** ![kumar.asom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kumar.asom/32/5799_2.png) [@kumar.asom](https://devforum.zoom.us/u/kumar.asom)\ **Post date:** [April 11, 2020, 7:19am UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/11 "2020-04-11T07:19:31Z")
Hello Tommy, Thanks for replying. I am now able to resolve the “Invalid redirect url” issue after going through the documentation in more detail. I am in the process of integrating Zoom meeting in one of my iOS app. Hopefully I will be able to get through that, will contact you otherwise. Thanks a lot. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 13, 2020, 7:30pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/12 "2020-04-13T19:30:23Z")
Great to hear you figured it out! 🙂 Yes, please let us know if you have additional questions! -Tommy ---
**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\ **Post date:** [August 21, 2020, 8:16pm UTC](https://devforum.zoom.us/t/invalid-redirect-4-700-for-testable-url/10196/13 "2020-08-21T20:16:44Z")
Closed on August 21, 2020, 8:16pm UTC