This fixed the majority of problems but there is still one site that has the issue That I need fixing. https://shiptrack.ebay.co.uk/ws/eBayISAPI.dll?SLFReview&bulkGrpId=13043122011 The only way you can test this is to actually sell an item on ebay and use the ebay print postage label option. The link will return bad if you do not actually sell that item. Once you click the purchase button after you filled in the details it gets an error message about SSL failing and then the page freezes and cannot be reloaded. If I turn of Adguard there is no such error anymore and it all works. So if you could look into that. Or I can catch the error and send the logs to you.