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-rw-r--r--ext/mixed/js/dynamic-loader.js12
1 files changed, 8 insertions, 4 deletions
diff --git a/ext/mixed/js/dynamic-loader.js b/ext/mixed/js/dynamic-loader.js
index 29672d36..51b6821b 100644
--- a/ext/mixed/js/dynamic-loader.js
+++ b/ext/mixed/js/dynamic-loader.js
@@ -31,8 +31,13 @@ const dynamicLoader = (() => {
}
function loadScripts(urls) {
- return new Promise((resolve) => {
+ return new Promise((resolve, reject) => {
const parent = document.body;
+ if (parent === null) {
+ reject(new Error('Missing body'));
+ return;
+ }
+
for (const url of urls) {
const node = parent.querySelector(`script[src='${escapeCSSAttribute(url)}']`);
if (node !== null) { continue; }
@@ -43,12 +48,11 @@ const dynamicLoader = (() => {
parent.appendChild(script);
}
- loadScriptSentinel(resolve);
+ loadScriptSentinel(parent, resolve, reject);
});
}
- function loadScriptSentinel(resolve, reject) {
- const parent = document.body;
+ function loadScriptSentinel(parent, resolve, reject) {
const script = document.createElement('script');
const sentinelEventName = 'dynamicLoaderSentinel';