This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The ReportingObserver()
constructor of the Reporting API creates a new ReportingObserver
object instance, which can be used to collect and access reports.
Syntax
new ReportingObserver(callback[, options]);
Parameters
callback
- A callback function that runs when the observer starts to collect reports (i.e. via
ReportingObserver.observe()
). The callback function is given two parameters:reports
: A sequence ofReport
objects representing the reports collected in the observer's report queue. This is probably the most common way to retrieve the reports.observer
: A reference to the sameReportingObserver
object, allowing for recursive report collection, etc.
options
Optional- An
ReportingObserverOptions
object allowing you to set the options for creating the object. The available options are:types
: An array of strings representing the types of report to be collected by this observer. Available types includedeprecation
,intervention
, andcrash
(although this last type usually isn't retrievable via aReportingObserver
).buffered
: a boolean that defines whether the reports that were generated before the observer was able to be created should be observable (true
) or not (false
).
Examples
let options = { types: ['deprecation'], buffered: true } let observer = new ReportingObserver(function(reports, observer) { reportBtn.onclick = () => displayReports(reports); }, options);
Specifications
Specification | Status | Comment |
---|---|---|
Reporting API The definition of 'ReportingObserver()' in that specification. |
Editor's Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ReportingObserver() constructor | Chrome Full support 69 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 56 | Safari No support No | WebView Android Full support 69 | Chrome Android Full support 69 | Firefox Android No support No | Opera Android Full support 48 | Safari iOS No support No | Samsung Internet Android Full support 10.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.