Security
SRI
Abbreviation for Subresource Integrity
In short and in plain language
SRI is a browser method for checking files loaded from elsewhere.
A checksum is stored for such a file.
The browser compares it with the file it loads. If the file was changed, the browser does not run it.
This can help to spot altered scripts from other providers.
Definition
SRI is a browser mechanism in which a checksum is stored for an externally loaded file. The browser compares it with the loaded file and does not execute a changed file. This can help to detect manipulated third-party scripts.