front end not running - cannot get on screen

the fron end code will not run, error in browser console as follows;

> favicon.ico:1 GET http://localhost:3000/favicon.ico 404 (Not Found)
> A bad HTTP response code (404) was received when fetching the script.
> Failed to load resource: net::ERR_INVALID_RESPONSE
> localhost/:1 Refused to load the image 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAACXBIWXMAAAsTAAALEwEAmpwYAAAKwWlDQ1BQaG90b3Nob3AgSUNDIHByb2ZpbGUAAHjarZZ3UJPZGsbf7/vSSKElhCIl9CZIJ4D0GkBBOtgICZBACCEFAbuyqOBaUBEBdUVXRBRcCyBrQUSxItj7giwqyrqoiw2V+wdLuHfuvX/cmfvOnJnfPHPOc973nH8eAOpjrkQiQtUBcsRyaUxoACspOYVFfAoI6AMZqMDm8mQS/+joSPjPhQB8uAsIAMAtO65EIoL/rTT46TIeABINAGl8GS8HADkOgHTwJFI5AFYAAKaL5BI5AFYDAAxpUnIKAHYEABiZE9wJAIy0Cb4PAAxpXEwgADYMQKJyudJMAMonAGDl8zLlAFQdAHAQ84ViAGoYAPjwBFw+AHUtAEzPycnlA1CPA4BV2j/5ZP6LZ5rSk8vNVPLELAAAQ...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' because it violates the following Content Security Policy directive: "default-src 'self'". Note that 'img-src' was not explicitly set, so 'default-src' is used as a fallback.

Start by running the frontend at localhost:3000 and reproducing the browser-console errors listed in the issue. Investigate the favicon 404, script response, and Content Security Policy image failure; the issue is done when the frontend loads on screen without these reported errors.

Written by the indexing model from the issue text.