CSPViolationReportBody: toJSON() method
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The toJSON() method of the CSPViolationReportBody interface is a serializer, which returns a JSON representation of the CSPViolationReportBody object.
The existence of a toJSON() method allows CSPViolationReportBody objects to be converted to a string using the JSON.stringify() method.
This is used by the reporting API when creating a serialized version of a violation report to send to a reporting endpoint.
Syntax
toJSON()
Parameters
None.
Return value
A JSON object that is the serialization of the CSPViolationReportBody object.
Examples
In this example we create a new ReportingObserver to observe CSP violation reports, then return a JSON representation of the first entry.
const observer = new ReportingObserver(
(reports, observer) => {
const firstReport = reports[0];
// Log JSON object
console.log(firstReport.toJSON());
// Log JSON object as a string
console.log(JSON.stringify(firstReport));
},
{
types: ["csp-violation"],
buffered: true,
},
);
observer.observe();
We call toJSON() on the firstReport, which is a Report instance, which in turn results in the toJSON() defined in this interface being called to serialize the body of the report.
For the purpose of demonstration we also call JSON.stringify() on firstReport to create a string containing the JSON data.
When sending or storing report information it is more common to do this than use toJSON() directly.
Specifications
This feature does not appear to be defined in any specification.Browser compatibility
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