# Can't change code in a function node

**URL:** <https://discourse.nodered.org/t/cant-change-code-in-a-function-node/72058>\
**Category:** General\
**Tags:** home-assistant\
**Created:** [12 December 2022 09:01 UTC](https://discourse.nodered.org/t/cant-change-code-in-a-function-node/72058 "2022-12-12T09:01:30Z")\
**Posts on this page:** 1\
**Showing post:** 11

<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [12 December 2022 13:57 UTC](https://discourse.nodered.org/t/cant-change-code-in-a-function-node/72058/11 "2022-12-12T13:57:27Z")

</div>

As @E1cid states, this is a known problem caused by "bad nodes" you have installed.

See this thread for which nodes cause this issue...

> [@tada Node-RED 2.0 Released](https://discourse.nodered.org/t/node-red-2-0-released/48647/43):
>
> This is a known issue with an prototype polution caused by other nodes. See this thread: [tada Node-RED 2.0.0-beta.1 Released - #84 by Botched1](https://discourse.nodered.org/t/node-red-2-0-0-beta-1-released/46990/84) Do you have any of these nodes installed... [node-red-contrib-deconz-test-zehir](https://www.npmjs.com/package/node-red-contrib-deconz-test-zehir) - [issue raised](https://github.com/deconz-community/node-red-contrib-deconz/issues/140) - fixed in v1.3.3 [node-red-contrib-defaro](https://www.npmjs.com/package/node-red-contrib-defaro) - [issue raised](https://github.com/bkorda/node-red-contrib-defaro/issues/1)[node-red-contrib-zigbee2mqtt](https://www.npmjs.com/package/node-red-contrib-zigbee2mqtt) - [issue raised](https://github.com/andreypopov/node-red-contrib-zigbee2mqtt/issues/41) - fixed in v0.6.9 [node-red-contrib-wirenboard](https://www.npmjs.com/package/node-red-contrib-wirenboard) - [issue raised](https://github.com/andreypopov/node-red-contrib-wirenboard/issues/2) - fixed in v3.5.1 [node-red-contrib-deconz](https://www.npmjs.com/package/node-red-contrib-deconz) - [Issue raised](https://github.com/deconz-community/node-red-contrib-deconz/issues/140) - fixed in v1.3.3 [node-red-con…](https://www.npmjs.com/package/node-red-contrib-zway)

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