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User getting 404 Errors on Salesforce .js.map Files

Knowledge Article Number 000212395
Description We are seeing 404 for following files:
  • VFremote.js.map
  • SfdcSessionBase190.js.map
  • SessionServer190.js.map
Why does the end users get 404 error on above files? These files are not there in our static resources.
Resolution
  • Noticing 404 errors for the above mentioned .js.map files. is fine as they are loaded only if you have debugger open in your browser.
  • You can also get 404 with loading .map files on VisualForce domains.
  • They do not cause any issues on customer's end.

Note: These files are Saleforce server files, customers will not find them in static resources.




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