# Learning React - urls in chapter 11 donlt work

**URL:** <https://forum.kirupa.com/t/learning-react-urls-in-chapter-11-donlt-work/641091>\
**Category:** web dev\
**Created:** [November 15, 2019, 7:55pm UTC](https://forum.kirupa.com/t/learning-react-urls-in-chapter-11-donlt-work/641091 "2019-11-15T19:55:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![grobbins](https://avatars.discourse-cdn.com/v4/letter/g/57b2e6/32.png) [@grobbins](https://forum.kirupa.com/u/grobbins)\
**Post date:** [November 15, 2019, 7:55pm UTC](https://forum.kirupa.com/t/learning-react-urls-in-chapter-11-donlt-work/641091/1 "2019-11-15T19:55:33Z")

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The following urls in the second editoin of the Learning React book in chapter 11 do not work

[https://www.kirupa.com/react/](https://www.kirupa.com/react/) lifecycle\_example.htm

> <https://github.com/kirupa/kirupa/blob/master/reactjs/lifecycle.htm>

Please provide the correct URLS

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**Author:** ![drcberry](https://avatars.discourse-cdn.com/v4/letter/d/e19adc/32.png) [@drcberry](https://forum.kirupa.com/u/drcberry)\
**Post date:** [November 16, 2019, 11:04pm UTC](https://forum.kirupa.com/t/learning-react-urls-in-chapter-11-donlt-work/641091/2 "2019-11-16T23:04:02Z")

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They seem to work for me?  
Working on codepen here:  
[https://codepen.io/drcberry/pen/NWKMjZP](https://codepen.io/drcberry/pen/NWKMjZP)  
check the html file, links are the same for the react library.

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**Author:** ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Post date:** [November 17, 2019, 10:48pm UTC](https://forum.kirupa.com/t/learning-react-urls-in-chapter-11-donlt-work/641091/3 "2019-11-17T22:48:17Z")

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What specific error are you seeing? Is it a 404/resource not found?