Razor compiler produces incorrect markup content for single-quoted attributes

[SteveSandersonMS]

Repro: Create a .razor file containing:

<button onclick='alert("hello")'>Click me</button>

Compiled result:

__builder.AddMarkupContent(0, "<button onclick=\"alert(\"hello\")\">Click me</button>");

This is incorrect because the double-quotes inside the attribute haven't been encoded in any way. At runtime, clicking on the button will produce an error (SyntaxError: Unexpected end of input).

Expected result: Something like

__builder.AddMarkupContent(0, "<button onclick=\"alert(&quot;hello&quot;)\">Click me</button>");

Or even:

__builder.AddMarkupContent(0, "<button onclick='alert(\"hello\")'>Click me</button>");

Do we claim to support single-quoted attributes fully in Razor?

cc @ajaybhargavb @NTaylorMullen

[NTaylorMullen]

Do we claim to support single-quoted attributes fully in Razor?

Yes

[phlexpay]

Does this mean this will be part of the next preview. This issue has been lingering and prevents the user of blazor in scenarios where json content is used in attributes. So js-carousel and other controls like that basically dont work on the client or server side blazor.

[SteveSandersonMS]

Does this mean this will be part of the next preview

There isn't a specific ETA that I can see listed on this issue but @NTaylorMullen would know best whether this is expected to be fixed as part of some 5.0 preview.

So js-carousel and other controls like that basically dont work on the client or server side blazor.

If you can supply an example of some markup that you're struggling with, I'm sure we can suggest a supported way to represent it in a .razor file.