Observing API requests to "/undefined" and "/null" endpoints within AngularJS framework

Upon loading my Angular (1.4.9) application, I encounter a console error that reads as follows: /undefined: Failed to load resource: the server responded with a status of 404 (Not Found).

Another similar error appears with /null instead of /undefined.

After inspecting the developer tools on Chrome, it seems that the call originates from masonry.pkgd.min.js (line 9). Any suggestions on how to resolve this issue?

When hovering over the initiator column, the output shows:

o @ masonry.pkgd.min.js:9

r @ masonry.pkgd.min.js:9

l.getSize @ masonry.pkgd.min.js:9

i._resetLayout @ masonry.pkgd.min.js:9

l.layout @ masonry.pkgd.min.js:9

r @ masonry.pkgd.min.js:9

e @ masonry.pkgd.min.js:9

javascriptangularjsmasonry

Answer №1

The reason for the issue was a misconfigured background-image CSS property set to /undefined within our JavaScript code. As a result, we were encountering numerous 404 errors. Surprisingly, the call stack was displaying inaccurately in both debug and production environments.

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