| <!doctype html> |
| <title>Custom Elements v0 features</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| test(() => { |
| assert_false('registerElement' in document) |
| }, 'document.registerElement should not exist') |
| |
| // These tests should pass as long as v0 isn't supported: |
| // v0: a 2nd string argument for createElement. |
| // v1: a ElementCreationOptions (dictionary) argument. |
| test(() => { |
| try { |
| const element = document.createElement('x', 'string') |
| // If neither v0/v1 are supported, then there should be no is attribute. |
| assert_false(element.hasAttribute('is')) |
| } catch (e) { |
| // If v1 is supported, then converting string to dictionary should throw. |
| assert_throws(new TypeError, function() { throw e }) |
| } |
| }, 'document.createElement(localName, "string") should not work') |
| |
| // createElementNS is analagous, but for the 3rd argument |
| test(() => { |
| try { |
| const element = document.createElementNS(null, 'x', 'string') |
| // If neither v0/v1 are supported, then there should be no is attribute. |
| assert_false(element.hasAttribute('is')) |
| } catch (e) { |
| // If v1 is supported, then converting string to dictionary should throw. |
| assert_throws(new TypeError, function() { throw e }) |
| } |
| }, 'document.createElementNS(namespace, qualifiedName, "string") should not work') |
| </script> |
