Supported Browsers? Not working with older browsers

[mkrabset]

Supported Browsers? Not working with older browsers

[mkrabset]

Hi, I've tried to add a few polyfills to support older browsers. Please try the version in branch issues/35.

I don't have any experience with LinuxCNC, but would it be possible to run in in docker perhaps?
I see there are some docker-images out there..I guess real-time OS requirement may cause issues but maybe still worth checking out...

[jeffs555]

Thanks for the fast response. That version still fails. Don't know much html and javascript programming, but just ran the debugger in older Firefox and it shows a syntax error. Doesn't flag this as error on new Firefox versions.

with the latest released Krabzcam it gets this error
SyntaxError: identifier starts immediately after numeric literal - main.c507ab8c.js:1:1211440

with issues-35 version it gets
SyntaxError: identifier starts immediately after numeric literal - main.6c32b213.js:1:1213610

also gives this link for more details
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Identifier_after_number

As for LinuxCNC, it needs the realtime kernal to drive the stepper motors with the correct timing. For 64-bit capable PC's there is a current 64-bit realtime linux kernal. However, the only laptops with a parallel port to drive the steppers are old and won't do 64-bit mode so I am stuck with obsolete 32-bit linux.

[jeffs555]

I tried the developer tools in Opera(v55), and it gives the same error as Firefox. With both browsers and both krabzcam versions it points to 0x0n=== as the error. Your code seems to be compiled js so I don't know exactly what that code is doing, but in the older working krabzcam versions there is no 0x0n.

[mkrabset]

Looks like some of the libraries used relies on BigInt support. Seems at least to be part of the problem.
(should be supported by Opera >= v54 though...don't know why v55 is not working)

Not an easy fix I'm afraid, so I guess you need to somehow upgrade your browser.

[jeffs555]

Thanks for that info. It let me know what level of Firefox I needed. Was able to get Firefox v72 installed and Krabzcam is working fine with it.

That BigInt page shows that there are a couple functions that Opera v54 does not support, and must not be supported in v55. Did download the current Opera version on another PC and Krabzcam works fine with it.