Internet browser return .customization extension instead of .json

From February 2025 my Angular web application returns .customization file extension instead .json. I don't know what's happened, everything worked ok before.

My code:

export const saveAsJson = (text: any, filename: string) => {
const blob = new Blob([text], { type: 'application/json' });
const link = document.createElement('a');
link.setAttribute('href', URL.createObjectURL(blob));
link.setAttribute('download', filename);
link.click();
};


Execution:

saveAsJson(JSON.stringify(this.exportData(), null, 2), filename);

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