# Sound in p5.js gives warnings

**URL:** <https://discourse.processing.org/t/sound-in-p5-js-gives-warnings/12731>\
**Category:** Libraries\
**Created:** [July 15, 2019, 9:13pm UTC](https://discourse.processing.org/t/sound-in-p5-js-gives-warnings/12731 "2019-07-15T21:13:48Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![GoToLoop](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/gotoloop/32/86_2.png) [@GoToLoop](https://discourse.processing.org/u/GoToLoop)\
**Post date:** [July 16, 2019, 12:36am UTC](https://discourse.processing.org/t/sound-in-p5-js-gives-warnings/12731/2 "2019-07-16T00:36:16Z")

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> [@Cannot Create Classes](https://discourse.processing.org/t/cannot-create-classes/8756/17):
>
> AFAIK, Firefox-based browsers treat the file:// URL scheme the same way as the http:// URL scheme. fox_face Thus far I haven’t found any issues at all when running Processing sketches on Firefox under its file:// URL scheme. partying_face Firefox-based browsers use the Gecko Spidermonkey JS engine. spider But if we prefer/need to test JS on the Chrome’s Blink V8 engine instead, we can use the Vivaldi browser: musical_score Similarly to Firefox, Vivaldi doesn’t restrict the file:// …

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