Port - Restrict which sites out webview iframe can frame (#18495)

* protocol handler - normalize paths

* use `extUri` for normalizing paths

* :lipstick;

* Add content security policy to top level webview

This change hardens our webviews by adding a fairly restrictive csp to them. This CSP should only apply to the outer webview iframe, not to the inner iframe which is controlled by extensions

Co-authored-by: Benjamin Pasero <benjamin.pasero@microsoft.com>
Co-authored-by: Matt Bierner <matb@microsoft.com>
This commit is contained in:
Karl Burtram
2022-02-18 15:12:21 -08:00
committed by GitHub
parent eff847f35a
commit e0cb88599d
2 changed files with 24 additions and 12 deletions

View File

@@ -4,6 +4,8 @@
<head>
<meta charset="UTF-8">
<meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'self'; frame-src 'self'; style-src 'unsafe-inline';">
<!-- Disable pinch zooming -->
<meta name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no">