[SOLVED] strange behavior VS2019 + FF / Chrome

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For a few days, the use of VS2019 with FireFox or Chrome has been slowed down. By pressing F12, everything appears blocked in the debug section and after a few seconds the message appears:  (javascript varies)

Uno script in questa pagina potrebbe essere occupato o aver smesso di rispondere. È possibile fermarlo adesso, aprirlo nel debugger o lasciarlo continuare.
Script: resource://devtools/client/deb…/src/utils/resource/memoize.js:22

Warning: Unresponsive script” prompt that says “A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete.

 

in my first tests it wasn’t like that.
This also happens with an empty project.

Any ideas?

Thank you

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Best Answer
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Looks like you have an unwanted script (memoize.js) which is not part of our distribution. Maybe a browser extension, or something else. Or you may have included it in your wisej project somewhere. A quick search shows that it’s a naive (and highly misguided) way to speed up javascript by caching function names and their return value.

  • Davide Mercanti
    I don’t know. The problem occours with FF and Chrome… and also with blank empty project.
  • Luca (ITG)
    In F12 look at the full path of resource://devtools/client/deb…/src/utils/resource/memoize.js. “resource:” means that the browser is using a plugin or extension. Try a different machine, clear the cache, delete all extensions. We never used memoize and cannot install anything using “resource:”.
  • Davide Mercanti
    after a deeper tour in about:config I have checked all configuration names related to “debug” and reset them to the default value… now it doesn’t freeze anymore. Thank you to Luca/Levie.
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I understand that it is not a wisej problem, but I was hoping that someone might have stumbled upon my own problem and had the solution …

the browser freezes, but it does not do it with other online sites (eg ebay or amazon)

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Hi Davide,

It sounds like it might be a browser configuration issue, especially if it happens with a blank project. Try clearing the browser’s cache, disabling extensions, and anything else you can to free up resources. Check your antivirus for slow-downs as well.

Let me know!

Best,

Levie

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