browser_bug822367.js and browser_bug902156.js both are mixed-content tests and call reload() with LOAD_FLAGS_ALLOW_MIXED_CONTENT. These tests fail and the test output includes: 0:08.33 TEST-INFO | chrome://mochitests/content/browser/browser/base/content/test/general/browser_bug902156.js | Console message: [JavaScript Error: "NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWebNavigation.reload]" {file: "chrome://global/content/browser-child.js" line: 163}] Instrumenting browser-child.js shows that it only seems to fail when the flags are LOAD_FLAGS_ALLOW_MIXED_CONTENT. Haven't dug any deeper than this!

LOAD_FLAGS_ALLOW_MIXED_CONTENT is used when a user clicks on the shield doorhanger and decides to disable mixed content blocking protection on a page. When the user does this, we reload the page with this flag. When we detect this flag on reload, we set something called the MixedContentChannel to the current channel: https://mxr.mozilla.org/mozilla-central/source/docshell/base/nsDocShell.cpp#9634 When deciding whether to allow or block mixed content, we compare the MixedContentChannel against the current channel to see if the user disabled protection for the page: https://mxr.mozilla.org/mozilla-central/source/docshell/base/nsDocShell.cpp#5505 Unfortunately, I won't be able to look into these e10s failures anytime soon.

Appears we fixed this at some point, these tests pass for me with --e10s.

try push: https://tbpl.mozilla.org/?tree=Try&rev=73b9344e47e2

(In reply to Jim Mathies [:jimm] from comment #3) > try push: > https://tbpl.mozilla.org/?tree=Try&re.. push w/properly formatted --e10s flags - https://tbpl.mozilla.org/?tree=Try&rev=a69f03edd2d8

(In reply to Jim Mathies [:jimm] from comment #4) > (In reply to Jim Mathies [:jimm] from comment #3) > > try push: > > https://tbpl.mozilla.org/?tree=Try&re.. > > push w/properly formatted --e10s flags - > > https://tbpl.mozilla.org/?tree=Try&rev=a69f03edd2d8 Hrm, unfortunately none of the bc runs got far enough to actually run these tests. They should show up in bc1.