diff --git a/frontend/src/components/BreadCrumb.vue b/frontend/src/components/BreadCrumb.vue
index ce98fda..7016559 100644
--- a/frontend/src/components/BreadCrumb.vue
+++ b/frontend/src/components/BreadCrumb.vue
@@ -48,9 +48,11 @@ const navigate = (index: number) => {
   if (!link) throw Error(`No link at index ${index} (path: ${props.path})`)
   const url = `/${longest.value.slice(0, index).join('/')}/`
   const here = `/${longest.value.join('/')}/`
+  const current = decodeURIComponent(location.hash.slice(1).split('//')[0])
+  const u = url.replaceAll('?', '%3F').replaceAll('#', '%23')
+  if (here.startsWith(current)) router.replace(u)
+  else router.push(u)
   link.focus()
-  if (here.startsWith(location.hash.slice(1))) router.replace(url)
-  else router.push(url)
 }
 
 const move = (dir: number) => {
diff --git a/frontend/src/components/FileExplorer.vue b/frontend/src/components/FileExplorer.vue
index 155da5f..f873093 100644
--- a/frontend/src/components/FileExplorer.vue
+++ b/frontend/src/components/FileExplorer.vue
@@ -50,7 +50,7 @@
             </template>
             <template v-else>
               <a
-                :href="url_for(doc)"
+                :href="doc.url"
                 tabindex="-1"
                 @contextmenu.prevent
                 @focus.stop="cursor = doc"
@@ -93,10 +93,6 @@ const props = defineProps<{
 }>()
 const store = useMainStore()
 const router = useRouter()
-const url_for = (doc: Doc) => {
-  const p = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
-  return doc.dir ? `#/${p}/` : `/files/${p}`
-}
 const cursor = shallowRef<Doc | null>(null)
 // File rename
 const editing = shallowRef<Doc | null>(null)
@@ -249,7 +245,7 @@ const mkdir = (doc: Doc, name: string) => {
         editing.value = null
       } else {
         console.log('mkdir', msg)
-        router.push(doc.loc ? `/${doc.loc}/${name}/` : `/${name}/`)
+        router.push(doc.urlrouter)
       }
     }
   })
diff --git a/frontend/src/components/HeaderMain.vue b/frontend/src/components/HeaderMain.vue
index 8bae445..90e1ff4 100644
--- a/frontend/src/components/HeaderMain.vue
+++ b/frontend/src/components/HeaderMain.vue
@@ -58,9 +58,9 @@ const updateSearch = (ev: Event) => {
   let p = props.path.join('/')
   p = p ? `/${p}` : ''
   const url = q ? `${p}//${q}` : (p || '/')
-  console.log("Update search", url)
-  if (!props.query && q) router.push(url)
-  else router.replace(url)
+  const u = url.replaceAll('?', '%3F').replaceAll('#', '%23')
+  if (!props.query && q) router.push(u)
+  else router.replace(u)
 }
 const toggleSearchInput = (ev: Event) => {
   showSearchInput.value = !showSearchInput.value
diff --git a/frontend/src/repositories/Document.ts b/frontend/src/repositories/Document.ts
index cae8774..7607083 100644
--- a/frontend/src/repositories/Document.ts
+++ b/frontend/src/repositories/Document.ts
@@ -23,11 +23,19 @@ export class Doc {
   constructor(props: Partial<DocProps> = {}) { Object.assign(this, props) }
   get name() { return this._name }
   set name(name: string) {
+    if (name.includes('/') || name.startsWith('.')) throw Error(`Invalid name: ${name}`)
     this._name = name
     this.haystack = haystackFormat(name)
   }
   get sizedisp(): string { return formatSize(this.size) }
   get modified(): string { return formatUnixDate(this.mtime) }
+  get url(): string {
+    const p = this.loc ? `${this.loc}/${this.name}` : this.name
+    return this.dir ? '/#/' + `${p}/`.replaceAll('#', '%23') : `/files/${p}`.replaceAll('?', '%3F').replaceAll('#', '%23')
+  }
+  get urlrouter(): string {
+    return this.url.replace(/^\/#/, '')
+  }
 }
 export type errorEvent = {
   error: {
diff --git a/frontend/src/views/ExplorerView.vue b/frontend/src/views/ExplorerView.vue
index 90939a5..a57976c 100644
--- a/frontend/src/views/ExplorerView.vue
+++ b/frontend/src/views/ExplorerView.vue
@@ -56,4 +56,3 @@ watchEffect(() => {
   store.fileExplorer = fileExplorer.value
 })
 </script>
-@/stores/main