# How to identify source of Browser-origin property change event

**URL:** <https://forum.inductiveautomation.com/t/how-to-identify-source-of-browser-origin-property-change-event/73911>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [May 18, 2023, 4:31pm UTC](https://forum.inductiveautomation.com/t/how-to-identify-source-of-browser-origin-property-change-event/73911 "2023-05-18T16:31:56Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![victordcq](https://avatars.discourse-cdn.com/v4/letter/v/f6c823/32.png) [@victordcq](https://forum.inductiveautomation.com/u/victordcq)\
**Post date:** [May 22, 2023, 7:31am UTC](https://forum.inductiveautomation.com/t/how-to-identify-source-of-browser-origin-property-change-event/73911/2 "2023-05-22T07:31:54Z")

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i ve had some run in with problems like this with **bidirectional** params that also have a script

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/4/64c9367c10ed0b8dd8d555ca08645ae114e7689a.png)  
you should change this to only be an input param

> [@\[BUG - 5694\] BREAKING BUG ViewParams 8.1.12 (For custom components?)](https://forum.inductiveautomation.com/t/bug-5694-breaking-bug-viewparams-8-1-12-for-custom-components/53277/28):
>
> Turning these to input only seems to fix it  
> ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/1/61fb3fc18627cedef720a176c80c1dadadf57962.png)

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