diff --git a/libraries/glfw.c3l/manifest.json b/libraries/glfw.c3l/manifest.json
index 6c1dca5..2a79918 100644
--- a/libraries/glfw.c3l/manifest.json
+++ b/libraries/glfw.c3l/manifest.json
@@ -1,6 +1,11 @@
 {
 	"provides": "glfw",
 	"targets" : {
+		"emscripten" : {
+			"link-args" : [],
+			"dependencies" : [],
+			"linked-libraries" : []
+		},
 		"macos-x64" : {
 			"link-args" : [],
 			"dependencies" : [],
diff --git a/libraries/opengl.c3l/gl.c3 b/libraries/opengl.c3l/gl.c3
index a922fa4..1aa4bc9 100644
--- a/libraries/opengl.c3l/gl.c3
+++ b/libraries/opengl.c3l/gl.c3
@@ -13734,12 +13734,24 @@ fn void load_all_gl(GLLoadFn load, int version) {
 
 fn int load_gl_internal(GLLoadFn load)
 {
-    getIntegerv = load("glGetIntegerv");
-    if (getIntegerv == null) return 0;
-    int major, minor;
-    getIntegerv((GLenum)GL_MAJOR_VERSION, &major);
-    getIntegerv((GLenum)GL_MINOR_VERSION, &minor);
-    int version = (major * 10) + minor;
-    load_all_gl(load, version);
-    return version;
+	getIntegerv = load("glGetIntegerv");
+	if (getIntegerv == null) return 0;
+	int major, minor;
+	getIntegerv((GLenum)GL_MAJOR_VERSION, &major);
+	getIntegerv((GLenum)GL_MINOR_VERSION, &minor);
+	// Treating WebGL 2.0 like OpenGL 3.3 in order to load as many of the
+	// functions defined for WebGL 2.0 as possible. Not all OpenGL 3.1 to 3.3
+	// functions are supported in WebGL 2.0, but there is overlap.
+	if (major == 3 && minor == 0)
+	{
+		getString = load("glGetString");
+		String version_str = ((ZString)getString((GLenum)GL_VERSION)).str_view();
+		if (version_str.contains("WebGL 2.0"))
+		{
+			minor = 3;
+		}
+	}
+	int version = (major * 10) + minor;
+	load_all_gl(load, version);
+	return version;
 }
diff --git a/libraries/opengl.c3l/manifest.json b/libraries/opengl.c3l/manifest.json
index c4d28b3..d7fa50c 100644
--- a/libraries/opengl.c3l/manifest.json
+++ b/libraries/opengl.c3l/manifest.json
@@ -1,6 +1,11 @@
 {
 	"provides" : "opengl",
 	"targets" : {
+		"emscripten" : {
+			"link-args" : [],
+			"dependencies" : [],
+			"linked-libraries" : []
+		},
 		"freebsd-x64" : {
 			"link-args" : [],
 			"dependencies" : [],