# Unexpected end of JSON when source map disabled **URL:** \ **Category:** Web\ **Created:** [May 27, 2020, 3:50pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264 "2020-05-27T15:50:54Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![grahaampeterson](https://avatars.discourse-cdn.com/v4/letter/g/47e85d/32.png) [@grahaampeterson](https://devforum.zoom.us/u/grahaampeterson)\ **Post date:** [May 27, 2020, 3:50pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/1 "2020-05-27T15:50:54Z")
Hi team @ Zoom I’m able to instantiate the web sdk (1.7.8) locally successfully, using webpack having enabled source map ([webpack devtool documentation](https://webpack.js.org/configuration/devtool/) _‘eval-source-map’_), I’ve noticed disabling source map in webpack caused my front end application to throw the following error ![unexpected end of json input](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/d/dd8c6c4b203841f1cb4055229d7948b0441a10bb.png) Are you able to confirm this? Is there a solution that doesn’t require the need to ship source maps? Thank you Just for reference, i’ll list what my front end application contains **package.json** ``` "dependencies": { ... "@zoomus/websdk": "^1.7.8", ... "jquery": "^3.4.1", "lodash": "^4.17.10", "react": "16.8.6", "react-dom": "16.8.6", "react-redux": "7.1.0", "redux": "3.7.2", "redux-thunk": "2.2.0", } ``` **webpack.build.js** ``` module.exports = { devtool: PRD ? false : 'eval-source-map', ... plugins: [ ... ] }; ``` **angular component** ``` import { Component } from '@angular/core'; import { ZoomMtg } from '@zoomus/websdk'; @Component(...) export class ZoomComponent { constructor(...) { ZoomMtg.preLoadWasm(); ZoomMtg.prepareJssdk(); } } ``` ---
**Author:** ![avand](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/avand/32/9363_2.png) [@avand](https://devforum.zoom.us/u/avand)\ **Post date:** [May 28, 2020, 1:31am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/2 "2020-05-28T01:31:34Z")
We’re seeing the same issue on our end. The SDK throws an unhandled exception and when we debug locally we see the correct value for the return of function `r` but when we deploy to production, we get the error because `r` returns an empty array: ![image (2)](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/d/d2803aaf62e50b4d08fa8de5f5d6186633f92cf4.png) ---
**Author:** ![spandit](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/spandit/32/1518_2.png) [@spandit](https://devforum.zoom.us/u/spandit)\ **Post date:** [June 2, 2020, 3:10am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/3 "2020-06-02T03:10:18Z")
Hi @avand@grahaampeterson were you able to find solution for this issue ? ---
**Author:** ![grahaampeterson](https://avatars.discourse-cdn.com/v4/letter/g/47e85d/32.png) [@grahaampeterson](https://devforum.zoom.us/u/grahaampeterson)\ **Post date:** [June 2, 2020, 9:29am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/4 "2020-06-02T09:29:39Z")
Hi @spandit, unfortunately not at the moment, i’ve kept source map for the time being but a little concerned this will be publicly exposed ---
**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:** [June 2, 2020, 6:41pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/5 "2020-06-02T18:41:48Z")
Hey @spandit, @grahaampeterson, @avand, Looks like you all are using Angular, please see the Angular Sample app and how I am including the files: > **[zoom/websdk-sample-angular](https://github.com/zoom/websdk-sample-angular)** > > Use the Zoom Web SDK in an Angular App. Contribute to zoom/websdk-sample-angular development by creating an account on GitHub. > Let me know if that helps! Thanks, Tommy ---
**Author:** ![lucille.hua](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/lucille.hua/32/9715_2.png) [@lucille.hua](https://devforum.zoom.us/u/lucille.hua)\ **Post date:** [June 2, 2020, 6:46pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/6 "2020-06-02T18:46:03Z")
Hi @tommy We are using React with `react-scripts` build scripts. If there is no React example on how to fix it, can you explain what you are trying to do in the angular case? ---
**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:** [June 3, 2020, 10:15pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/7 "2020-06-03T22:15:21Z")
Hey @lucille.hua, Have you included the required files? It should also work in React: > **[@zoomus/websdk](https://www.npmjs.com/package/@zoomus/websdk#usage)** > > Zoom Web SDK Thanks, Tommy ---
**Author:** ![perseus362434](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/perseus362434/32/10243_2.png) [@perseus362434](https://devforum.zoom.us/u/perseus362434)\ **Post date:** [June 10, 2020, 1:04pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/8 "2020-06-10T13:04:15Z")
I faced same problem but not fixed yet. Please help me ---
**Author:** ![prantikde](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/prantikde/32/10348_2.png) [@prantikde](https://devforum.zoom.us/u/prantikde)\ **Post date:** [June 11, 2020, 7:43pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/9 "2020-06-11T19:43:41Z")
We are also facing the same exact problem with the exact same error in production. Can you please help me. We are using React with `react-scripts` build scripts. React-version: `16.0.0` zoom-version: `1.7.8` ---
**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:** [June 16, 2020, 3:27am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/11 "2020-06-16T03:27:51Z")
Hey @prantikde, @perseus362434, Can you please provide a github repo with the error so I can reproduce and debug locally? Thanks, Tommy ---
**Author:** ![prantikde](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/prantikde/32/10348_2.png) [@prantikde](https://devforum.zoom.us/u/prantikde)\ **Post date:** [June 16, 2020, 10:18am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/12 "2020-06-16T10:18:42Z")
Hi @tommy Here, is the github repo for a react app where I have replicated the error if you follow the readme file. [My github repo](https://github.com/deprantik/sample-zoom-web-sdk-app) ![Screenshot 2020-06-16 at 3.33.33 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/a/a963d4cacc1f886248b5904c4e7dec9ab050fe5c.png) Thanks, Prantik ---
**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:** [June 19, 2020, 12:35am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/14 "2020-06-19T00:35:23Z")
Hey @prantikde, I was able to reproduce the issue using your repo, however, I was not able to solve it. This seems to be an issue with react or the way it optimizes it’s build. Like @grahaampeterson said, it works when enabling source maps. Maybe this Stack Overflow will help: > > [@avand](#): > > We’re seeing the same issue on our end. The SDK throws an unhandled exception and when we debug locally we see the correct value for the return of function `r` but when we deploy to production, we get the error because `r` returns an empty array: I will talk to our Web SDK engineerings to see if this is the reason it is not working in a production build. (CS-1971) Thanks, Tommy ---
**Author:** ![prantikde](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/prantikde/32/10348_2.png) [@prantikde](https://devforum.zoom.us/u/prantikde)\ **Post date:** [June 19, 2020, 8:07am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/15 "2020-06-19T08:07:58Z")
Hey @tommy Thanks for checking it out. I hope it gets solved soon 😬 Thanks, Prantik ---
**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:** [June 19, 2020, 10:23pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/17 "2020-06-19T22:23:36Z")
Happy to help! 🙂 I will keep you updated! Thanks, Tommy ---
**Author:** ![eleal](https://avatars.discourse-cdn.com/v4/letter/e/82dd89/32.png) [@eleal](https://devforum.zoom.us/u/eleal)\ **Post date:** [July 17, 2020, 2:45pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/18 "2020-07-17T14:45:09Z")
Any update about this issue? ---
**Author:** ![muhamadangga609](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/muhamadangga609/32/5880_2.png) [@muhamadangga609](https://devforum.zoom.us/u/muhamadangga609)\ **Post date:** [July 20, 2020, 4:10am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/19 "2020-07-20T04:10:37Z")
waiting update for this issue ---
**Author:** ![muhamadangga609](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/muhamadangga609/32/5880_2.png) [@muhamadangga609](https://devforum.zoom.us/u/muhamadangga609)\ **Post date:** [July 20, 2020, 6:40am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/20 "2020-07-20T06:40:02Z")
i use react-app-rewired for solved this issue ---
**Author:** ![jagathprasad0](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jagathprasad0/32/9575_2.png) [@jagathprasad0](https://devforum.zoom.us/u/jagathprasad0)\ **Post date:** [July 22, 2020, 2:03pm UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/21 "2020-07-22T14:03:16Z")
Hi Team, I am also facing the same issue in angular , Please any one found fix please help me, Because, I am facing big problem in production from my clients. ![prod issue](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/5/58f3d863266ddb29b980eca7a704b336725a008f.png) ---
**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:** [July 27, 2020, 1:12am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/24 "2020-07-27T01:12:04Z")
Hey @jagathprasad0, @muhamadangga609, @eleal, I was not able to reproduce this issue using [GitHub pages](https://pages.github.com/) and the Angular sample app here with the built version in /docs: > **[tommygaessler/websdk-sample-angular-live](https://github.com/tommygaessler/websdk-sample-angular-live)** > > Live Example of Zoom Web SDK with Angular. Contribute to tommygaessler/websdk-sample-angular-live development by creating an account on GitHub. I used `$ ng build --prod` Deployed site: [https://tommygaessler.com/websdk-sample-angular-live/](https://tommygaessler.com/websdk-sample-angular-live/) Thanks, Tommy ---
**Author:** ![LysR777](https://avatars.discourse-cdn.com/v4/letter/l/ccd318/32.png) [@LysR777](https://devforum.zoom.us/u/LysR777)\ **Post date:** [August 26, 2020, 2:06am UTC](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264/25 "2020-08-26T02:06:11Z")
Was this fixed in Zoom Web SDK version 1.8.0 released today? I was having a similar issue yesterday: ``` nuxt Error while "mounting" app: SyntaxError: Unexpected end of JSON input ``` …while using SDK version 1.7.9, npm, nuxt, vuejs. It worked locally, but I got the above error in production. I spent most of yesterday doing fresh installs of the SDK, as well as all packages from scratch, thinking something was corrupt or cached. When I did the same today, I noticed I was now installing 1.8.0, and it finally worked on my production server. [Next page](https://devforum.zoom.us/t/unexpected-end-of-json-when-source-map-disabled/19264.md?page=2)