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How can I get the javascript errors in very old mobile browsers? Those browsers are not Chrome, so I don't have the "Developer Tools" to open. I'm using a typical Real Mobile device remote testing, and I open the browser but I can't find any "Javascript console". Any idea to test why my page is not working in some old devices?

I'm noticing it's a Javascript problem for sure ... for example of using Javascript modern notation.

The problem is I have a lot of code, and instead of changing one line (and put and alert for example), refreshing, and doing this loop 5000 times is too much :-)

Note: I tried to use Rollbar to send JS errors to cloud, but it's not working :-(

FlamingMoe
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  • if you don't have modern tools, you might want to look at [deprecated options like Weinre](https://stackoverflow.com/a/10718777/295004) but even [Google Play services discontinuing updates for Jelly Bean (API levels 16, 17 & 18)](https://android-developers.googleblog.com/2021/07/google-play-services-discontinuing-jelly-bean.html). Oh just realized you are using remote testing. I would try to add logging in many places to narrow down the fault. – Morrison Chang Aug 06 '21 at 09:32

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