Fix script-src-blocks-wasm.tentative.html
Add 'self' to csp policy and load a module from a different origin
to trigger security policy violation.
Bug: 336582036
Change-Id: I752769b9a5c4af916c092c14844ebcf01c594faf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5656871
Bot-Commit: Rubber Stamper rubber-stamper@appspot.gserviceaccount.com
Commit-Queue: Weizhong Xia weizhong@google.com
Cr-Commit-Position: refs/heads/main@{#1321917}