# Bug in deprecated.js not compiling

**URL:** <https://meta.discourse.org/t/bug-in-deprecated-js-not-compiling/50687>\
**Category:** Bug\
**Created:** [September 26, 2016, 9:01pm UTC](https://meta.discourse.org/t/bug-in-deprecated-js-not-compiling/50687 "2016-09-26T21:01:52Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![mbeale](https://avatars.discourse-cdn.com/v4/letter/m/b3f665/32.png) [@mbeale](https://meta.discourse.org/u/mbeale)\
**Post date:** [September 26, 2016, 9:01pm UTC](https://meta.discourse.org/t/bug-in-deprecated-js-not-compiling/50687/1 "2016-09-26T21:01:52Z")

</div>

Users using IE10 (they’re not able to upgrade to IE11) see a blank screen after login.

It looks like ‘const’ on line 5 of assets/javascripts/deprecated.js is not being compiled/isn’t ES6.

I’m not sure how to fix, so submitting this bug note vs a PR. Am new to Discourse, so let me know if I should be doing things differently.

Thanks!

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_[View the full topic](https://meta.discourse.org/t/bug-in-deprecated-js-not-compiling/50687)._