different count of ocsp-POST-requests

Hi,

we noticed a different number of (unfortunately very expensive) ocsp-requests shown in waterfalls delivered by version 126 and 130 of wptdriver. We tested with actual Firefox the following script:

logData	0
setCookie	http://www.otto.de	uniqueUserId = 806fd6a9-82e9-4f22-b1c0-ee262f1c4cfa; expires = 01-Jan-2080 00:00:00 GMT
/// Produkt 1 in Warenkorb
navigate	http://www.otto.de/suche/?commit=true&ls=0&commit=true&fh_search=shirt&&fh_search_requested=shirt&sterm=shirt&stype=N
execAndWait	document.querySelector('#p0 a.js_ProductListProductRef').click();
execAndWait	document.getElementById('TconImgAddToBasket').click();

/// Produkt 2 in Warenkorb
navigate	http://www.otto.de/suche/?commit=true&ls=0&commit=true&fh_search=brille&&fh_search_requested=brille&sterm=brille&stype=N&SelectRuleEngineVariants=0
execAndWait	document.querySelector('#p0 a.js_ProductListProductRef').click();
execAndWait	document.getElementById('TconImgAddToBasket').click();

/// PRodukt 3 in Warenkorb
navigate http://www.otto.de/suche/?commit=true&ls=0&commit=true&fh_search=bikini&&fh_search_requested=bikini&sterm=bikini&stype=N&SelectRuleEngineVariants=0
execAndWait	document.querySelector('#p0 a.js_ProductListProductRef').click();
execAndWait	document.getElementById('TconImgAddToBasket').click();

/// PRodukt 4 in Warenkorb
navigate	http://www.otto.de/suche/?commit=true&ls=0&commit=true&fh_search=adidas&&fh_search_requested=adidas&sterm=adidas&stype=N&SelectRuleEngineVariants=0
execAndWait	document.querySelector('#p0 a.js_ProductListProductRef').click();
execAndWait	document.getElementById('TconImgAddToBasket').click();

/// Produkt 5 in Warenkorb
navigate	http://www.otto.de/suche/?commit=true&ls=0&commit=true&fh_search=nike&&fh_search_requested=nike&sterm=nike&stype=N&SelectRuleEngineVariants=0
execAndWait	document.querySelector('#p0 a.js_ProductListProductRef').click();
execAndWait	document.getElementById('TconImgAddToBasket').click();

logData	1
execAndWait	document.getElementById('TconImgGotoBasket').click();

In wptdriver 126-tests we had much more ocsp-requests than in actual wptdriver 130-tests (see hars in attachments). We think (and observed in wireshark manually) that wptdriver 126-results are more realisitic.
Could you tell us, what changes between 126 and 130 could be responsible for this. And what changed in measurement of HTTPS-sites with wptdriver the last weeks?

Thanks in advance,
regards, Nils

I’m fairly certain that the only change that should impact any of that was that the navigation command in scripts was pretty broken in 126 and it was fixed in 130.

The other thing that changed was that Firefox 23 was released - just a quick sanity check, were both sets of tests on the same Firefox version? Also, were you using the stock template/firefox directory from the release or had you pre-seeded any certificates?

Here is the full diff between the two releases: Comparing 48912cb7be0be5def535d845587ae53e8dabc657...f63275e634d84d875970324bd9ba60b7caa11293 · WPO-Foundation/webpagetest · GitHub