DeprecationReportBody: sourceFile property

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The sourceFile read-only property of the DeprecationReportBody interface returns the path to the source file where the deprecated feature was used.

Note: This property can be used with DeprecationReportBody.lineNumber and DeprecationReportBody.columnNumber to locate the column and line in the file where the error occurred.


A string, or null if the path is not known.


In this example we create a new ReportingObserver to observe deprecation reports, then print the value of sourceFile to the console.

let options = {
  types: ["deprecation"],
  buffered: true,

let observer = new ReportingObserver((reports, observer) => {
  let firstReport = reports[0];
  console.log(firstReport.type); // deprecation
}, options);


Deprecation Reporting
# dom-deprecationreportbody-sourcefile

Browser compatibility

BCD tables only load in the browser