API throws an error when adding a claim without a PR URL

[ananay]

Claims need to be submitted for only opening issues as well. Since they do not include a PR URL, the application should allow the PR URL field to be left blank.

a) In the case of "/api/claims/add", the server throws an error (shown below)
b) In the case of "/claims/add", the request "freezes up", doesn't add the claim and then cloudflare sends the thing shown below

Request output for a)

Request output for b)

Proposed solution: Add necessary validation to all the fields and make the PR request field optional.

Apparently, creating too many of these requests on "/claims/add" can be DoS primitive.

[ananay]

@championswimmer @the-dagger @prateek27

[championswimmer]

Why would there be a claim without a PR ?

[ananay]

@championswimmer
According to this #49, there are points for submitting an issue / bug. In this case, we don't have a PR because this is just a filing of an issue so here it doesn't make sense to input anything into the PR field.

[championswimmer]

The newly created issue will be the PR in that case. Mentioned that on gitter and faq.