Don't trap keys when modifiers are set. Fixes: #1

process/static/js/mailbox-viewer.js

@@ -3,6 +3,11 @@
 
 const epoch = "1970-01-01T00:00:00+00:00";
 
+function has_modifiers(evt)
+{
+    return evt.altKey || evt.ctrlKey || evt.isComposing || evt.metaKey || evt.shiftKey;
+}
+
 class MessageTable
 {
     constructor(options)
@@ -14,6 +19,10 @@ class MessageTable
         this.table = $(this.el_table).find("table");
 
         this.el_tbody.addEventListener("keydown", evt => {
+            // Skip all events with modifiers, since we don't use any, and this
+            // way we prevent eating browser shortcuts
+            if (has_modifiers(evt))
+                return;
             const code = evt.code;
             let ignored = false;
             if (code == "Escape")
@@ -39,6 +48,9 @@ class MessageTable
         });
 
         this.el_tbody.addEventListener("wheel", evt => {
+            // Skip all events with modifiers, since we don't use any so far
+            if (has_modifiers(evt))
+                return;
             if (evt.deltaY < 0)
                 this.prev_message();
             else
@@ -46,6 +58,9 @@ class MessageTable
         });
 
         this.el_tbody.addEventListener("click", evt => {
+            // Skip all events with modifiers, since we don't use any so far
+            if (has_modifiers(evt))
+                return;
             // Find the row clicked
             let tr = evt.target;
             while (tr && tr.tagName != "TR")