Dimensions missing in JSON links of download button

Reported by an user

Reproduce the bug

• go to https://db.nomics.world/ECB/SPF?dimensions=%7B%22FCT_TOPIC%22%3A%5B%22UNEM%22%5D%2C%22FREQ%22%3A%5B%22M%22%5D%2C%22FCT_BREAKDOWN%22%3A%5B%22F11_0T11_4%22%5D%7D
• click on the Download button
• the JSON link is https://api.db.nomics.world/v22/series/ECB/SPF: the dimensions are missing

However the XLSX and CSV links are OK.