Fixes Jeager UI broken when accessing via IPv6 address (jaegertracing…

…#491)

packages/jaeger-ui/src/utils/prefix-url.tsx

@@ -14,6 +14,17 @@
 
 import sitePrefix from '../site-prefix';
 
+/**
+ * Escape any RegEx characters in a given string
+ *
+ * @param  {string} value The string which needs to be escaped
+ * @return {string} Escaped RegEx string
+ */
+function regExEscape(value?: string) {
+  const s = value == null ? '' : String(value);
+  return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+};
+
 const origin = process.env.NODE_ENV === 'test' ? global.location.origin : window.location.origin;
 /**
  * Generate the URL prefix from `sitePrefix` and use it for all subsequent calls
@@ -24,7 +35,7 @@ const origin = process.env.NODE_ENV === 'test' ? global.location.origin : window
  * - `"http://localhost:3000/abc/"` to `"/abc"`
  * - `"http://localhost:3000/abc/def/"` to `"/abc/def"`
  */
-const rx = new RegExp(`^${origin}|/$`, 'ig');
+const rx = new RegExp(`^${regExEscape(origin)}|/$`, 'ig');
 const pathPrefix = sitePrefix.replace(rx, '');
 
 /**