Mayor de Blasio and Gov. Cuomo have finally found an issue on which they can agree — Cynthia Nixon is wrong to push for amending the Taylor Law banning strikes by New York’s public employees.

“I have a lot of respect for Cynthia but I disagree with her on this,” the mayor said at an unrelated press conference in Union Square.

“I acknowledge and appreciate that she said there should be an exemption for first responders. But I don’t agree with changing the Taylor Law. I think the Taylor Law serves an important public purpose and at the same time, there are lots of ways for workers rights to be acknowledged and their voices to be heard. I think we have the right law now.”

Cuomo — who is running against Nixon in the Sept. 13 Democratic gubernatorial primary — had a more visceral take.

“No. No. Uh, not if you believe police officers should respond when you call 911 or firemen should come to the home. God forbid your house is on fire,” Cuomo when asked about amending the no-strike law.

“Or a prison guard should guard a prison. These are essential services. And the premise of the Taylor Law is you would have chaos, uh, if certain services were not provided.”

After advocating to amend the law, the Nixon campaign on Tuesday said she was “open to exempting certain essential employees” — such as cops and firefighters.

Cuomo seemed to mock the proposal when asked about “carve-outs” for essential workers.

“But then you’re not repealing the Taylor Law.” he said. “That would be a different proposal. How do you modify it … What does she carve out?”

“Police? … Prison guards. Ambulance providers? Utility workers … First responders?”

Cuomo started to chuckle at all the exemptions.

The governor was then asked about allowing strikes for teachers, the largest category of employees.

“Then it’s a different proposal,” Cuomo said.

But Nixon immediately issued a statement doubling down on her plan.

“Governor Cuomo attacked unions for most of his first two terms — pushing to cut pensions, and retaliating against teachers for not supporting him in his campaign for governor,” Nixon said.

“While Cuomo has done an election year about-face and started aggressively courting the support of union leaders, today’s comments make clear that the governor remains anti-worker at heart. We should be standing alongside our brave teachers, not cracking down on them for fighting for fair pay and dignity and better education for their students.”

The Nixon release added, “In New York, public sector union members not only lack the right to strike, but are also harshly penalized when they do.”

The anti-strike law was put in place after work stoppages crippled the city.

Even some labor leaders representing government workers oppose ending the prohibition against strikes.

“Under the Taylor Law we have collective bargaining, binding arbitration. We’re opposed to having chaos,” said Gregg Floyd, president of Teamsters Local 237 representing school safety agents and security workers patrolling public housing projects and homeless facilities.

“This is a desperate proposal.”