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-rw-r--r--content/main.js27
1 files changed, 19 insertions, 8 deletions
diff --git a/content/main.js b/content/main.js
index 9ed557c..5edb8a6 100644
--- a/content/main.js
+++ b/content/main.js
@@ -19,6 +19,7 @@
* IMPORT is_chrome
* IMPORT is_mozilla
* IMPORT start_activity_info_server
+ * IMPORT sanitize_csp_header
* IMPORTS_END
*/
@@ -65,6 +66,17 @@ function block_node(node)
block_script(node);
return;
}
+
+ else if (node.tagName === 'META' &&
+ node.getAttribute('http-equiv') === 'content-security-policy') {
+
+ node.content = sanitize_csp_header(
+ {value: node.content},
+ `'nonce-${nonce}'`,
+ !policy.allow
+ ).value;
+ return;
+ }
sanitize_attributes(node);
@@ -114,14 +126,13 @@ if (!is_privileged_url(document.URL)) {
if (!policy.allow) {
block_nodes_recursively(document.documentElement);
- if (is_chrome) {
- var observer = new MutationObserver(handle_mutation);
- observer.observe(document.documentElement, {
- attributes: true,
- childList: true,
- subtree: true
- });
- }
+ /* Now needed on Mozilla as well to sanitize CSP header */
+ var observer = new MutationObserver(handle_mutation);
+ observer.observe(document.documentElement, {
+ attributes: true,
+ childList: true,
+ subtree: true
+ });
if (is_mozilla)
addEventListener('beforescriptexecute', mozilla_suppress_scripts, true);