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-rw-r--r--components/script/dom/webglrenderingcontext.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/components/script/dom/webglrenderingcontext.rs b/components/script/dom/webglrenderingcontext.rs
index 37fc47d9d78..eecfeceee15 100644
--- a/components/script/dom/webglrenderingcontext.rs
+++ b/components/script/dom/webglrenderingcontext.rs
@@ -417,7 +417,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
}
let data = match data {
Some(data) => data,
- None => return,
+ None => return self.webgl_error(InvalidValue),
};
if offset < 0 {
return self.webgl_error(InvalidValue);