security - Does javascript subresource integrity check protect from client-side editing? -

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the question says all. use of subresource integrity checks foil execution of javascript has been edited locally (say in browser's debug window)?

appreciate insights.

quote mdn:

browsers handle sri doing following:

when browser encounters <script> or <link> element integrity attribute, before executing script or before applying stylesheet specified <link> element, browser must first compare script or stylesheet expected hash given in integrity value.

if script or stylesheet doesn’t match associated integrity value, browser must refuse execute script or apply stylesheet, , must instead return network error indicating fetching of script or stylesheet failed.

so no, not protect malicious code being executed via console, since wont affect loaded files in way.


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