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🐛 set the event target during dynamic script onload/onerror events (#914)

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Co-authored-by: wangzongxu <wangzongxu@vipkid.com.cn>
Co-authored-by: Kuitos <kuitos.lau@gmail.com>
This commit is contained in:
壹十八画生 2020-09-09 10:49:21 +08:00 committed by GitHub
parent f9c6126528
commit 447454f97c
1 changed files with 14 additions and 2 deletions
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16
src/sandbox/patchers/dynamicAppend.ts
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@ -61,6 +61,18 @@ function setCachedRules(element: HTMLStyleElement, cssRules: CSSRuleList) {
Object.defineProperty(element, styledComponentSymbol, { value: cssRules, configurable: true, enumerable: false });
}
function patchCustomEvent(e: CustomEvent, elementGetter: () => HTMLScriptElement | null): CustomEvent {
Object.defineProperties(e, {
srcElement: {
get: elementGetter,
},
target: {
get: elementGetter,
},
});
return e;
}
function getOverwrittenAppendChildOrInsertBefore(opts: {
appName: string;
proxy: WindowProxy;
@ -159,7 +171,7 @@ function getOverwrittenAppendChildOrInsertBefore(opts: {
// 2. addEventListener way, which toast-loader used, see https://github.com/pyrsmk/toast/blob/master/src/Toast.ts#L64
const loadEvent = new CustomEvent('load');
if (isFunction(element.onload)) {
element.onload(loadEvent);
element.onload(patchCustomEvent(loadEvent, () => element));
} else {
element.dispatchEvent(loadEvent);
}
@ -169,7 +181,7 @@ function getOverwrittenAppendChildOrInsertBefore(opts: {
error: () => {
const errorEvent = new CustomEvent('error');
if (isFunction(element.onerror)) {
element.onerror(errorEvent);
element.onerror(patchCustomEvent(errorEvent, () => element));
} else {
element.dispatchEvent(errorEvent);
}