Tooltip: remove title attribute before show & add tests (#35456)

1 files changed, 11 insertions, 3 deletions

diff --git a/js/src/tooltip.js b/js/src/tooltip.js
index 2f3acda38..19a9b3168 100644
--- a/js/src/tooltip.js
+++ b/js/src/tooltip.js
@@ -394,7 +394,7 @@ class Tooltip extends BaseComponent {
   }
 
   _getTitle() {
-    return this._resolvePossibleFunction(this._config.title) || this._element.getAttribute('title')
+    return this._config.title
   }
 
   // Private
@@ -510,11 +510,17 @@ class Tooltip extends BaseComponent {
   }
 
   _fixTitle() {
-    const title = this._element.getAttribute('title')
+    const title = this._config.originalTitle
 
-    if (title && !this._element.getAttribute('aria-label') && !this._element.textContent) {
+    if (!title) {
+      return
+    }
+
+    if (!this._element.getAttribute('aria-label') && !this._element.textContent) {
       this._element.setAttribute('aria-label', title)
     }
+
+    this._element.removeAttribute('title')
   }
 
   _enter() {
@@ -579,6 +585,8 @@ class Tooltip extends BaseComponent {
       }
     }
 
+    config.originalTitle = this._element.getAttribute('title') || ''
+    config.title = this._resolvePossibleFunction(config.title) || config.originalTitle
     if (typeof config.title === 'number') {
       config.title = config.title.toString()
     }