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Guarantee execution order of <script> elements (#1574)

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Hikaru Y 2022-01-04 07:58:09 +09:00 committed by GitHub
parent 35c8449ab2
commit 36e20fd110
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1 changed files with 14 additions and 8 deletions
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22
ts/reviewer/index.ts
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@ -59,7 +59,16 @@ export function _queueAction(action: Callback): void {
_updatingQueue = _updatingQueue.then(action);
}
function setInnerHTML(element: Element, html: string): void {
function replaceScriptPromise(script: HTMLScriptElement): Promise<void> {
return new Promise((resolve) => {
const newScript = script.cloneNode(true);
newScript.addEventListener("load", () => resolve());
newScript.addEventListener("error", () => resolve());
script.replaceWith(newScript);
});
}
async function setInnerHTML(element: Element, html: string): Promise<void> {
for (const oldVideo of element.getElementsByTagName("video")) {
oldVideo.pause();
@ -73,14 +82,11 @@ function setInnerHTML(element: Element, html: string): void {
element.innerHTML = html;
for (const oldScript of element.getElementsByTagName("script")) {
const newScript = document.createElement("script");
for (const attribute of oldScript.attributes) {
newScript.setAttribute(attribute.name, attribute.value);
if (oldScript.src) {
await replaceScriptPromise(oldScript);
} else {
oldScript.replaceWith(oldScript.cloneNode(true));
}
newScript.appendChild(document.createTextNode(oldScript.innerHTML));
oldScript.parentNode!.replaceChild(newScript, oldScript);
}
}