devtools.network.getHAR()

Get a HAR log for the page loaded in the current tab.

This is an asynchronous function that returns a Promise.

Syntax

var getting = browser.devtools.network.getHAR()

Parameters

None.

Return value

A Promise that will be fulfilled with a object containing the HAR log for the current tab. For details of what the log object contains, refer to the HAR specification.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxOperaFirefox for Android
Basic supportChrome Full support YesEdge No support NoFirefox Full support 60
Notes
Full support 60
Notes
Notes The returned HAR log will be empty unless the user has previously activated the browser's network panel at least once.
Opera Full support YesFirefox Android No support No

Legend

Full support  
Full support
No support  
No support
See implementation notes.
See implementation notes.

Examples

Log the URLs of requests contained in the HAR log:

async function logRequests() {
  let harLog = await browser.devtools.network.getHAR();
  console.log(`HAR version: ${harLog.version}`);
  for (let entry of harLog.entries) {
    console.log(entry.request.url);
  }
}

logRequestsButton.addEventListener("click", logRequests);

Acknowledgements

This API is based on Chromium's chrome.devtools.network API.

Document Tags and Contributors

Contributors to this page: hellosct1, wbamberg
Last updated by: hellosct1,