# Perspective: old parameter values are used when missing from URL?

**URL:** <https://forum.inductiveautomation.com/t/perspective-old-parameter-values-are-used-when-missing-from-url/35302>\
**Category:** Ignition\
**Created:** [June 3, 2020, 7:49pm UTC](https://forum.inductiveautomation.com/t/perspective-old-parameter-values-are-used-when-missing-from-url/35302 "2020-06-03T19:49:41Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![321liftoff](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/321liftoff/32/27544_2.png) [@321liftoff](https://forum.inductiveautomation.com/u/321liftoff)\
**Post date:** [June 3, 2020, 8:09pm UTC](https://forum.inductiveautomation.com/t/perspective-old-parameter-values-are-used-when-missing-from-url/35302/2 "2020-06-03T20:09:00Z")

</div>

If it helps any, I have an Event Script bound to “onStartup” for the view that is configured as the main page. When there is old data, I’m finding that the script also is not called:

```
self.page.props.title = "My Test Page"
```

---

_[View the full topic](https://forum.inductiveautomation.com/t/perspective-old-parameter-values-are-used-when-missing-from-url/35302)._