Friday, November 29, 2019

SharePoint framework webpart - ERR_SSL_PROTOCOL_ERROR

I was unable to view a newly created sharepoint framework webpart in Chrome browser and the error shown was

This site can’t provide a secure connection
localhost sent an invalid response.
Try running Windows Network Diagnostics.
ERR_SSL_PROTOCOL_ERROR

The only solution I could find for this problem was to change protocol of the local website from https to http.

Specifially, open serve.json file under config directory and set https = false, and initialPage = http://localhost:5432/workbench


{
  "$schema""https://developer.microsoft.com/json-schemas/core-build/serve.schema.json",
  "port"4321,
  "https"false,
  "initialPage""http://localhost:5432/workbench",
  "api": {
    "port"5432,
    "entryPath""node_modules/@microsoft/sp-webpart-workbench/lib/api/"
  }
}



If you know of any other way to fix this error without changing protocol, please do let me know.

More information can be found on this blog https://github.com/SharePoint/sp-dev-docs/issues/2343

No comments:

c# httpclient The remote certificate is invalid according to the validation procedure: RemoteCertificateNameMismatch

 If we get this error while trying to get http reponse using HttpClient object, it could mean that certificate validation fails for the remo...