183695 2018-03-16 07:10:24 -0700 Service Worker does not receive a fetch event when sending a FormData using XMLHttpRequest 2022-01-05 01:07:49 -0800 1 1 1 Unclassified WebKit Service Workers Safari Technology Preview Mac macOS 10.13 RESOLVED DUPLICATE 187461 https://tas1982.github.io/serviceworker/public/index.html P2 Major --- 1 thiago.soares webkit-unassigned beidson cdumez youennf oldest_to_newest 1406972 0 thiago.soares 2018-03-16 07:10:24 -0700 Request sent using the XMLHttpRequest and whose body is a FormData is not being intercepted by the Service Worker. It can be tested on https://tas1982.github.io/serviceworker/public/index.html The page has a form and two buttons: - The first button will submit the form and that request will be received as a fetch event in the Service Worker - The second button will submit the from using a FormData object and a XMLHttpRequest. This request will go direct to the server. The service worker will not intercept it. 1828209 1 youennf 2022-01-05 01:07:49 -0800 Let's do the work in bug 187461. *** This bug has been marked as a duplicate of bug 187461 ***