Fix deepLinking scroll behavior

Author: shockey

src/core/plugins/deep-linking/spec-wrap-actions.js

@@ -31,20 +31,32 @@ export const updateResolved = (ori, { layoutActions, getConfigs }) => (...args)
     let swaggerUI = document.querySelector(".swagger-ui")
     let myScroller = zenscroll.createScroller(swaggerUI)
 
+    let target
+
     if(tag && operationId) {
       // Pre-expand and scroll to the operation
       layoutActions.show(["operations-tag", tag], true)
       layoutActions.show(["operations", tag, operationId], true)
 
-      let target = document.getElementById(`operations-${escapeDeepLinkPath(tag)}-${escapeDeepLinkPath(operationId)}`)
-      myScroller.to(target)
-
+      target = document
+        .getElementById(`operations-${escapeDeepLinkPath(tag)}-${escapeDeepLinkPath(operationId)}`)
     } else if(tag) {
       // Pre-expand and scroll to the tag
       layoutActions.show(["operations-tag", tag], true)
 
-      let target = document.getElementById(`operations-tag-${escapeDeepLinkPath(tag)}`)
+      target = document.getElementById(`operations-tag-${escapeDeepLinkPath(tag)}`)
+    }
+
+
+    if(target) {
       myScroller.to(target)
+      setTimeout(() => {
+        // Backup functionality: if we're still at the top of the document,
+        // scroll on the entire page (not within the Swagger-UI container)
+        if(zenscroll.getY() === 0) {
+          zenscroll.to(target)
+        }
+      }, 50)
     }
   }