# Invalid Signature with Sample Web App

**URL:** <https://devforum.zoom.us/t/invalid-signature-with-sample-web-app/4005>\
**Category:** Web\
**Created:** [April 23, 2019, 1:35am UTC](https://devforum.zoom.us/t/invalid-signature-with-sample-web-app/4005 "2019-04-23T01:35:44Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![szliuxi199908](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/szliuxi199908/32/2266_2.png) [@szliuxi199908](https://devforum.zoom.us/u/szliuxi199908)\
**Post date:** [November 5, 2019, 8:20am UTC](https://devforum.zoom.us/t/invalid-signature-with-sample-web-app/4005/20 "2019-11-05T08:20:47Z")

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Hi,

I encountered the same “invalid signature” problem even when I set up a Zoom meeting and used the actual meeting ID without “-”. I followed the guidelines and did not change the javascript code except for replacing “Your API Key and Secret” with my actual ones. Here is the screenshot.

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/f/f6b27d2cf2c4c93cfadec93ce2f924d08ebe7b1c.png)

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