ASP.Net Sys.ParameterCountException upon including Zoom JS

Meeting SDK Web
1

Description
Using the CDN install method.
Installing into a plain ASPX page (ASP.Net)
No issues importing dependencies
When I add the import ZoomMtg line, but do nothing else on the page, I get this error about 4 times:
Sys.ParameterCountException: Sys.ParameterCountException: Parameter count mismatch

Error
Sys.ParameterCountE* xception: Sys.ParameterCountException: Parameter count mismatch. ScriptResource.axd:22:15

  • Sys.ParameterCountException: Sys.ParameterCountException: Parameter count mismatch. ScriptResource.axd:22:15
  • FacultyWebInterview.aspx:149:13
  • Sys.ParameterCountException: Sys.ParameterCountException: Parameter count mismatch. ScriptResource.axd:22:15
  • Sys.ParameterCountException: Sys.ParameterCountException: Parameter count mismatch. ScriptResource.axd:22:15
  • Error$create http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:237

  • Error$parameterCount http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:413

  • Function$_validateParameterCount http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:118

  • Function$_validateParams http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:70

  • String$startsWith http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:491

  • startsWith https://source.zoom.us/zoom-meeting-1.7.5.min.js:2

  • Sys$UI$DomEvent http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:3986

  • browserHandler http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:4052

  • (Async: EventListener.handleEvent)

  • Sys$UI$DomEvent$addHandler http://localhost:50613/ScriptResource.axd?d=_JQEGgmI4Qv_7HqbWkd9ja9xDKIG1wooa6rg6mzz97PuQMuqBVtDTjaYyUnhFY20mbLpAvwDKxD26w8rpTX4LLi4ywzioxWDj6TvA177V_u0kvaFuAyMVxtWVQm4UMojULcE3Rj-gsMBE6pvzf3MFKyXvE3YIEBZuHvNeZ5odPb4dl5NXdQQqb-zPla5uUPu0&t=ffffffff9a9577e8:4054

  • Sys$WebForms$PageRequestManager$_initializeInternal http://localhost:50613/ScriptResource.axd?d=ljGbxvxJDkcEdLmQajHQq5WonwtUptuxR5GGP7iKVLfEkKxcYTHQIasAVqZigC_ea05c2FqY9GyQ8Si3SGhHnMqQlvEF9sl-bdmx1S0e0ZlygoHqVhT4xDsj4iwfe28LkdABFb5QFzAkzph85-CGUnp5nY7Nw-bT2LeZBWBMF_-Va2WGv-_8LAfhnOJyqqNv0&t=ffffffff9a9577e8:1111

  • Sys$WebForms$PageRequestManager$_initialize http://localhost:50613/ScriptResource.axd?d=ljGbxvxJDkcEdLmQajHQq5WonwtUptuxR5GGP7iKVLfEkKxcYTHQIasAVqZigC_ea05c2FqY9GyQ8Si3SGhHnMqQlvEF9sl-bdmx1S0e0ZlygoHqVhT4xDsj4iwfe28LkdABFb5QFzAkzph85-CGUnp5nY7Nw-bT2LeZBWBMF_-Va2WGv-_8LAfhnOJyqqNv0&t=ffffffff9a9577e8:1891

  • <anonymous> http://localhost:50613/Interview/FacultyWebInterview.aspx?appid=575:124

Which version?
1.7.5

To Reproduce(If applicable)
Steps to reproduce the behavior:

  1. Create ASPX UserControl, include in a ASPX page.

Screenshots
N/.A

Smartphone (please complete the following information):

  • Device: Desktop
  • OS: Windows 10
  • Version: 10
  • Browser: Firefox, Chrome

Additional context
As soon as I remove the ZoomMtg JS script tag, this error just disappears.
My best guess is the Zoom SDK is calling or somehow triggering a .Net web method or event.
Any idea how to handle this, or get Zoom SDK working in ASP.Net?

2

Hey @sales1,

I haven’t seen this error before.

Checkout this stack overflow:

Thanks,
Tommy

3

Basically the Web SDK is breaking the ASP.Net WebServices APIs and I’m not positive as to exactly why or how. The just including the Web SDK CDN JS link in the page breaks all ASP JS stuff.

Is it possible Zoom is re-defining JS methods or updating prototypes and these are colliding with the changes (“enhancements”) ASP has added/injected.

Using the WebSDK on a plain HTML page in an ASP.Net project makes the whole thing so much more difficult.

4

Hey @sales1,

The Web SDK was designed to work on a HTML page via JavaScript.

To solve your issues, you could simply host the Web SDK on a different url path or sub domain with HTML and JavaScript, and then utilize the leaveUrl to be brought back to your ASP.Net site after the meeting is over / has ended.

Thanks,
Tommy