23 lines
706 B
JavaScript
23 lines
706 B
JavaScript
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// passthrough request and modify response from server
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// pass object as second arg of properties in response to override
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export default function (req, props = {}) {
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return new Promise((resolve) => {
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const xhr = req.passthrough();
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xhr.onreadystatechange = () => {
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if (xhr.readyState === 4) {
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if (xhr.status < 300) {
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// XMLHttpRequest response prop only has a getter -- redefine as writable and set value
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Object.defineProperty(xhr, 'response', {
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writable: true,
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value: JSON.stringify({
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...JSON.parse(xhr.responseText),
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...props,
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}),
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});
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}
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resolve();
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}
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};
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});
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}
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