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Hello and thank you for your response. Yes, it is indeed a webmail managed by Outlook. I wonder if it's because my computer did updates yesterday. It states in the "details": client error failed to load javascript. I'm not familiar with this, so maybe the update installed these "security extensions" that are causing the issue.
Sincerely
In principle, no, Windows updates do not address this issue.
If it is an internal origin, it is an antivirus software that is opposing it (Windows Defender or third-party antivirus); if there is an extension, it is usually voluntary and related to the browser (for example, NoScript on Firefox), but we can clarify this latter ambiguity by trying to connect with another browser (or, of course, by using a mail software like Thunderbird instead of a webmail).
Again, I don't know much about Outlook, but I advise caution: if these scripts are related not to the functioning of Outlook but to the mail itself, there is no reason for scripts to be present, and the "censorship" is a good thing.

Hello,
It is therefore assumed that this is a Webmail managed by Outlook and not the Outlook software, otherwise, it is unclear what Javascript would be doing there.
Javascript is not Java and does not need it; it is read by the browser on the site that includes it.
I do not use Outlook Webmail, so I am not sure if its connection is supposed to invoke Javascripts or if it is the email we are trying to view that contains them. In that case, a security software or a security extension may want to block it, perhaps justifiably if we do not know what those scripts do.