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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2020-05-02 13:00:46 -0400
committerGitHub <noreply@github.com>2020-05-02 13:00:46 -0400
commitc4ea9321dcffbda9004461a7b0027cf5c893f3c0 (patch)
treed42693165e657bd038d037ac65d61dbc99d59dcf /ext/fg/js/document.js
parent51032d1eca04820a80f34dfd511a927c55975c1f (diff)
Validate document nodes before use (#493)
* Validate document.body before use in loadScripts This also fixes an issue where reject wasn't being passed to loadScriptSentinel. * Validate document nodes before use in _getSiteColor * Validate document.body before use in _getViewport * Validate document.body before use in setContentScale * Validate document.body before use in docImposterCreate
Diffstat (limited to 'ext/fg/js/document.js')
-rw-r--r--ext/fg/js/document.js5
1 files changed, 4 insertions, 1 deletions
diff --git a/ext/fg/js/document.js b/ext/fg/js/document.js
index 3b4cc28f..6103c7c5 100644
--- a/ext/fg/js/document.js
+++ b/ext/fg/js/document.js
@@ -28,6 +28,9 @@ function docSetImposterStyle(style, propertyName, value) {
}
function docImposterCreate(element, isTextarea) {
+ const body = document.body;
+ if (body === null) { return [null, null]; }
+
const elementStyle = window.getComputedStyle(element);
const elementRect = element.getBoundingClientRect();
const documentRect = document.documentElement.getBoundingClientRect();
@@ -78,7 +81,7 @@ function docImposterCreate(element, isTextarea) {
}
container.appendChild(imposter);
- document.body.appendChild(container);
+ body.appendChild(container);
// Adjust size
const imposterRect = imposter.getBoundingClientRect();