• I'm submitting a ...
• Bug report

Please include this information:

• What Grafana version are you using?
  3.1.1
• What datasource are you using?
  InfluxDB 0.13
• What OS are you running grafana on?
  Linux
• What did you do?
  Build a query with a tag that includes forward slashes
• What was the expected result?
  Graph!
• What happened instead?
  InfluxDB says the query is invalid. Plus sign in query editor no longer works.

Query is:
SELECT mean("resp_time") FROM "test" WHERE "url_class" =~ /web/start/ AND time > now() - 5m GROUP BY time(200ms) fill(null)

When I press +, the following query is issued:
SHOW TAG KEYS FROM "test" WHERE "url_class" =~ /web/start/

And I get 400 error:
{"error":"error parsing query: found start, expected ; at line 1, char 53"}

I guess the error is in not escaping the '/'.
This query works: SHOW TAG KEYS FROM "test" WHERE "url_class" =~ //web/start//;