<a target=XXX> creates a new top level browsing context, which is not supported by embedders

[atouchet]

Steps to reproduce:

1. Press Ctrl + L and enter https://servo.org/bhtml-newtab/newtab.html
2. Click on the DuckDuckGo tile to navigate to https://duckduckgo.com/html/
3. Press Ctrl + L and enter https://servo.org/bhtml-newtab/newtab.html again. This time https://servo.org/bhtml-newtab/newtab.html does not load and the page remains on https://duckduckgo.com/html/. The window's title bar does change to the correct page however.

Tested in Windows 10.

[atouchet]

This issue also occurs when attempting to load a new page instead of reloading https://servo.org/bhtml-newtab/newtab.html.

[naokiri]

Reproduced on current master (65bcf63), Ubuntu Linux 18.04.

[jdm]

Also reproduced on macOS. Very curious...

[paulrouget]

Ran into this today.

The issue is with target attribute. Simpler STR:

Create a file "a.html" containing: <a target="foo" href="http://example.com">CLICK</a>:

./mach run -d file:///tmp/a.html
click on "CLICK"
Ctrl-L
type: about:blank

[paulrouget]

The glutin port doesn't support tabs yet. We should at least print an error: #24672

See:

servo/ports/glutin/browser.rs

Line 31 in 8abc272

/// id of the top level browsing context. It is unique as tabs

and:

servo/ports/glutin/browser.rs

Line 345 in 8abc272

// TODO: properly handle a new "tab"

[atouchet]

I am no longer able to reproduce the original issue which I assume is due to servo/servo.org#81. Should this be closed then or would it be better to repurpose the issue?

[jdm]

It would be better to repurpose the issue and include a minimal set of html files that demonstrate the issue when navigating between them.