With b206517 fixed, this test submits the test file metadata correctly (like the non-redirect version) but no payload is sent. --- /home/lauro/dev/WebKit/layout-test-results/http/tests/misc/form-submit-file-cross-site-redirect-expected.txt +++ /home/lauro/dev/WebKit/layout-test-results/http/tests/misc/form-submit-file-cross-site-redirect-actual.txt @@ -2,6 +2,6 @@ This tests verifies the test file included in the multipart form data: PASS: File is present PASS: File upload was successful -PASS: File size is greater than 0 +FAIL: File size is 0 Payload with `var_dump($_FILES['data']);` in the PHP script: ``` array(5) { ["name"]=> string(8) "test.tmp" ["type"]=> string(24) "application/octet-stream" ["tmp_name"]=> string(14) "/tmp/php0dQ3qM" ["error"]=> int(0) ["size"]=> int(0) } ``` Using the original test from Julio in b201950[1] with Minibrowser it seems to work normally. [1] https://redirection-experiment.herokuapp.com/