# Sample App Shows ERR\_SSL\_PROTOCOL\_ERROR **URL:** \ **Category:** Web\ **Created:** [November 24, 2020, 1:34am UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769 "2020-11-24T01:34:13Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![frsjh](https://avatars.discourse-cdn.com/v4/letter/f/8491ac/32.png) [@frsjh](https://devforum.zoom.us/u/frsjh)\ **Post date:** [November 24, 2020, 1:34am UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/1 "2020-11-24T01:34:13Z")
**Description** i was installed sample-app to my server. mode is CDN mode. i was generated JWT key from zoom dev site. http site shows ok. but it cannot using camera. so i was connected by https, but browser shows ERR\_SSL\_PROTOCOL\_ERROR error code. how to apply ssl key into my sample-app? please give me about this. i already checked it need openssl keys. i hope to know how to appply this key to app. **Error** The full error message or issue you are running into. **Which version?** Knowing the version can help us to identify your issue faster. **To Reproduce(If applicable)** Steps to reproduce the behavior: 1. Go to ‘…’ 2. Click on ‘…’ 3. Scroll down to ‘…’ 4. See error **Screenshots** If applicable, add screenshots to help explain your problem. **Device (please complete the following information):** - Device: [e.g. iPhone6] - OS: [e.g. iOS8.1] - Version: [e.g. 22] - Browser:[e.g. Chrome] **Additional context** Add any other context about the problem here. ---
**Author:** ![meetever-chris](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@meetever-chris](https://devforum.zoom.us/u/meetever-chris)\ **Post date:** [November 24, 2020, 2:26pm UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/2 "2020-11-24T14:26:48Z")
Your best bet would be to use something like ngrok to easily create a HTTPS tunnel with a valid certificate to your localhost. You’ll get an externally reachable HTTPS-URL point to your local dev server. ---
**Author:** ![frsjh](https://avatars.discourse-cdn.com/v4/letter/f/8491ac/32.png) [@frsjh](https://devforum.zoom.us/u/frsjh)\ **Post date:** [November 24, 2020, 11:50pm UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/3 "2020-11-24T23:50:21Z")
Thank you. that is good solution to me. but i hope using ssl for everyone. ---
**Author:** ![meetever-chris](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@meetever-chris](https://devforum.zoom.us/u/meetever-chris)\ **Post date:** [November 25, 2020, 8:08am UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/4 "2020-11-25T08:08:33Z")
@frsjh well, honestly, I guess you should get some more experience in HTTP / HTTPS servers in general and Node express / fastify specifically ---
**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:** [November 30, 2020, 8:18pm UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/5 "2020-11-30T20:18:32Z")
Hey @frsjh, Are you still having issues? Thanks for your input @meetever-chris! 🙂 -Tommy ---
**Author:** ![frsjh](https://avatars.discourse-cdn.com/v4/letter/f/8491ac/32.png) [@frsjh](https://devforum.zoom.us/u/frsjh)\ **Post date:** [November 30, 2020, 10:57pm UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/6 "2020-11-30T22:57:54Z")
thank you. @tommy i can’t solve this. i just want starting sample app with https. ---
**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:** [December 1, 2020, 7:04pm UTC](https://devforum.zoom.us/t/sample-app-shows-err-ssl-protocol-error/36769/7 "2020-12-01T19:04:56Z")
Hey @frsjh, Happy to help further. Can you please share screenshots and steps to reproduce the issue? Thanks, Tommy