MathML is unsupported about angular HOT 9 CLOSED

Interesting, this should work as we do parse this as math namespace, but then fail to validate it correctly.

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Yeah the compiler output clearly has the MathML support in it.

The DomRenderer relies on createElementNS() but it looks like the namespace is wrong.

It should be http://www.w3.org/1998/Math/MathML per this

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With #55622 we'll at least get the support for MathML but it will still require NO_ERRORS_SCHEMA .

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@lukewarlow Yes, we're looking at landing this "fix" into 17.3 and the upcomming 18.0 !

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Intersting, this should work as we do parse this as math namespace, but then fail to validate it correctly.

Yeah, there's definitely some level of support for it, the namespace appears correct but then it seems to get the prototype wrong (not even sure how that's possible?). As a guess it's not using createElementNS(), it's doing something else.

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With #55622 we'll at least get the support for MathML but it will still require NO_ERRORS_SCHEMA .

Yeah that error is because DomSchemaChecker is looking up the definition using the prefixed tagname :math:math which isn't present, as it only contains non-prefixed tagnames.

We should ideally have a branded type for those prefixed tag names, that will likely expose some inconsistencies.

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@JeanMeche great catch! I was just helping someone else with a similar issue where createElementNS was returning an Element and it was an invalid namespace which brought me back here, you're one step ahead though

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Would be good to reopen this issue until #55622 is merged (or go ahead and merge that as it's approved)

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Closing this now that the second PR has been merged.

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