build_files/templates/sidebar/variant-selector.html

@@ -2,7 +2,7 @@
   <ul id="versionwrap" role="presentation">
     <li role="presentation">
       <span id="version-popover" class="version-btn" tabindex="0" role="button" aria-label="versions selector"
-        aria-haspopup="true" aria-controls="version-vsnlist" aria-disabled="true">
+        aria-haspopup="true" aria-controls="version-vsnlist">
         {{ release }}
       </span>
       <div class="version-dialog" aria-hidden="true">

build_files/theme/js/version_switch.js

@@ -58,7 +58,7 @@ init() {
 			})
 			.catch(() => {
 				console.error("Version Switch Error: versions.json could not be loaded.");
-				this.btn.classList.remove("disabled");
+				this.btn.classList.add("disabled");
 			});
 		} else {
 			resolve();