diff options
| -rw-r--r-- | app/error-handler.js | 10 | ||||
| -rw-r--r-- | app/styles/base.css | 4 |
2 files changed, 14 insertions, 0 deletions
diff --git a/app/error-handler.js b/app/error-handler.js index e9ce68e..a68fe92 100644 --- a/app/error-handler.js +++ b/app/error-handler.js @@ -50,6 +50,16 @@ function handleError(event, err) { document.getElementById('noVNC_fallback_error') .classList.add("noVNC_open"); + + // Remove focus from the currently focused element in order to + // prevent keyboard interaction from continuing + document.activeElement.blur(); + + // Don't let any element be focusable when showing the error + let keyboardFocusable = 'a[href], button, input, textarea, select, details, [tabindex]'; + document.querySelectorAll(keyboardFocusable).forEach((elem) => { + elem.setAttribute("tabindex", "-1"); + }); } catch (exc) { document.write("noVNC encountered an error."); } diff --git a/app/styles/base.css b/app/styles/base.css index b7840c5..59fd47b 100644 --- a/app/styles/base.css +++ b/app/styles/base.css @@ -287,6 +287,10 @@ select:active { #noVNC_fallback_error { z-index: 1000; visibility: hidden; + /* Put a white background in front of everything but the error, + and don't let mouse events pass through */ + background: rgba(0, 0, 0, 0.8); + pointer-events: all; } #noVNC_fallback_error.noVNC_open { visibility: visible; |