sitespeedioChrome-har
Create HAR files based on Chrome DevTools Protocol data.
We got tired of waiting for the +30K engineers at Google implementing a way to automate to get a HAR file https://issues.chromium.org/issues/40809195 so we implemented our own solution in the mean time.
Code originally extracted from Browsertime, initial implementation inspired by Chromedriver_har.
Create a new bug report
Make sure to generate a event trace log file that we can use to recreate your issue. If you use Browsertime you can enable the trace with --chrome.collectPerfLog:
$ browsertime --chrome.collectPerfLog -n 1 https://www.sitespeed.ioThen take the file named chromePerflog-1.json.gz and put it in a gist or make it availible to us in any way you want.
If you use sitespeed.io:
$ sitespeed.io --browsertime.chrome.collectPerfLog -n 1 https://www.sitespeed.ioSupport for Response Bodies
If you use Chrome-har standalone (without Browsertime/sitespeed.io) you can use get the response bodies in HARs if they are set on the response object by the caller and if the includeTextFromResponseBody option is set to true.
For example:
const harEvents: Array<any> = [];
client.on('Network.requestIntercepted', async (params: any) => {
// Get the response body
const response = await client.send(
'Network.getResponseBodyForInterception',
{ interceptionId: params.interceptionId },
);
// Set the body on the response object
if (params.response != null) {
params.response.body = response.body;
} else {
params.response = response;
}
// Continue the request
await client.send(
'Network.continueInterceptedRequest',
{ interceptionId: params.interceptionId },
);
harEvents.push({ method, params });
});
const har = harFromMessages(harEvents, {includeTextFromResponseBody: true});