diff --git a/content/canvas/src/WebGLContextGL.cpp b/content/canvas/src/WebGLContextGL.cpp
index 8065012ab90..508ee6abed3 100644
--- a/content/canvas/src/WebGLContextGL.cpp
+++ b/content/canvas/src/WebGLContextGL.cpp
@@ -486,10 +486,10 @@ WebGLContext::BufferSubData(GLenum target, WebGLsizeiptr byteOffset,
 
     CheckedUint32 checked_neededByteLength = CheckedUint32(byteOffset) + data->Length();
     if (!checked_neededByteLength.isValid())
-        return ErrorInvalidOperation("bufferSubData: integer overflow computing the needed byte length");
+        return ErrorInvalidValue("bufferSubData: integer overflow computing the needed byte length");
 
     if (checked_neededByteLength.value() > boundBuffer->ByteLength())
-        return ErrorInvalidOperation("bufferSubData: not enough data - operation requires %d bytes, but buffer only has %d bytes",
+        return ErrorInvalidValue("bufferSubData: not enough data - operation requires %d bytes, but buffer only has %d bytes",
                                      checked_neededByteLength.value(), boundBuffer->ByteLength());
 
     MakeContextCurrent();
@@ -524,10 +524,10 @@ WebGLContext::BufferSubData(WebGLenum target, WebGLsizeiptr byteOffset,
 
     CheckedUint32 checked_neededByteLength = CheckedUint32(byteOffset) + data.Length();
     if (!checked_neededByteLength.isValid())
-        return ErrorInvalidOperation("bufferSubData: integer overflow computing the needed byte length");
+        return ErrorInvalidValue("bufferSubData: integer overflow computing the needed byte length");
 
     if (checked_neededByteLength.value() > boundBuffer->ByteLength())
-        return ErrorInvalidOperation("bufferSubData: not enough data -- operation requires %d bytes, but buffer only has %d bytes",
+        return ErrorInvalidValue("bufferSubData: not enough data -- operation requires %d bytes, but buffer only has %d bytes",
                                      checked_neededByteLength.value(), boundBuffer->ByteLength());
 
     boundBuffer->ElementArrayCacheBufferSubData(byteOffset, data.Data(), data.Length());